Παραπομπή APA

Gregor, C. M. (1987). (the) Great Barrier Reef. Time-Life Books.

Παραπομπή Chicago Style

Gregor, Craig Mc. (the) Great Barrier Reef. Amsterdam: Time-Life Books, 1987.

Παραπομπή MLA

Gregor, Craig Mc. (the) Great Barrier Reef. Time-Life Books, 1987.