There are various formats and versions of this EP on vinyl and CD (also on cassette but since I know nothing about cassettes I have no comment on them and haven't included them on the blog).
The two vinyl versions come from the UK and the US: The UK version (72438 - 82073 - 7 -9)has the EMI logo on the back cover along with "mono". The US version (72438 - 58348 -7 - 5)has the Capitol logo on the back cover along with "mono" in addition to the catalogue number. Both front covers are the same with the Apple logo / tracklisting / and the mono designation (the US version has a line between the Apple logo and tracklisting whereas the UK version does not). There are also difference on the EP vinyl label. Both versions have the full Apple on side one and the half Apple on side two. The UK version has a white background whereas the US version has a cream background. The UK version has a small spindle hole whereas the US version has a large spindle hole. The UK version has the mono designation and "all rights" print to the left with copyright information to the right. The US version has the Capitol logo, mono designation as well as the manufacturing credits and "all rights" print to the left. Both US and UK versions have the same print on the right.
A CD EP was also released with the same back cover as the UK version (with the EMI logo) on my Canadian copy. My copy also includes the "Capitol" logo between the EMI and Apple logos along with the Capitol of Canada information. The CD has the full Apple logo similar to the vinyl (no background) as well as "see inlay for details" print. The front cover is the same as the vinyl (no line between the Apple logo and tracklisting). The front cover photo is the same as the back cover photo of the LP/CD.
A promotional single CD was released by Capitol Records in the US as a Valentine Day's card. The card opens up and contains the CD. The front of the card features a candy heart with the title, as it opens the EP photo is shown on the left and written in script on the right is: "Happy Valentine's Day From Us To You". The CD label has the full Apple with "Baby It's You" above written in script. The left side has the manufacture, "all rights" print and "printed in the USA" on the left with the copyright credits to the right. "The Beatles" drop T logo is at the bottom. The back of the card contains the title/artist and LP name, liner notes, the Apple and Capitol logos as well as all information manufacturing, rights, etc. The catalogue number for this CD single is DPRO-79553 Promotional use only/not for sale.