Cover art credited on copyright page.
"Cover art and concept by Phil Gambrill" [over] "Cover painting by Lawrence Burton"
It's not clear what Gambrill's contribution is although he is listed as the designer of the book.
"First printing" on copyright page.
Publication date from Amazon UK.
The interview with Franklin J. Schaffner was conducted by two different people years apart but are merged into a single "interview" in the book.
The interview with Maurice Evans (Dr. Zaius) took place on July, 1967 and June, 1969 but are combined into a single "interview" in the book.
The 30th Anniversary Press Tour was a satellite conference with some of the stars and the producers. It is presented as a transcript.