This is the cover to Newton Comics' The Incredible Hulk #6:
It originally appeared on the cover of Marvel Comics' The Incredible Hulk #103:
The story contents are as follows:
And Now... The Space Parasite!, originally published in The Incredible Hulk #103, May 1968
Enter: The Hulk [Part 1], originally published in Tales to Astonish #59, September 1964
And Now... The Space Parasite! appears to be reprinted complete and intact.
Enter: The Hulk is an 18-page story. Only the first 7 pages are reprinted in this issue. They appear to be reprinted intact apart from the inclusion of a To Be Continued advisory at the bottom of the last panel.
The poster in this issue featured the cover to Doctor Strange #1:
My copy does not have the Swap Card.
This issue contains two in-house advertisements for other Newton issues:
Doctor Strange #3
The contest expiry date is 27 October 1975, two weeks after the expiry date in The Incredible Hulk #5, which I believe was published 30 August 1975. This issue includes The Swap Cards Cometh Bulletin. This is also the first $0.35 cover price issue in the series. Triangulating this data leads me to a publication date of 13 September 1975.
This issue also contains a letters page and a t-shirt offer.