Missing in Spider-Man 1975:

 Marvel Tales (#57Reprints ASM #76)
 Marvel Tales (#58Reprints ASM #77)
 Marvel Tales (#59Reprints ASM #78)
 Marvel Tales (#60Reprints ASM #79)
 Marvel Tales (#61Reprints ASM #80)
 Marvel Tales (#62Reprints ASM #81)
 Marvel Tales (#63Reprints ASM #82)
 Marvel Treasury Edition (#8Giant Superhero Holiday Grab Bag )
 Spidey Super Stories #6	
 Spidey Super Stories #7	
 Spidey Super Stories #8	
 Spidey Super Stories #9	
 Spidey Super Stories #10	
 Spidey Super Stories #11	
 Spidey Super Stories #12
 Spidey Super Stories #13
 Spidey Super Stories #14