APA Style

BAIGENT, M, &, L, R. (1983). HOLY BLOOD HOLY GRAIL (1). NEW YORK: A DELL BOOK N YORK 1983.

MLA Style

BAIGENT, Michael, &, LEIGH,, Richard. "HOLY BLOOD HOLY GRAIL". 1 NEW YORK: A DELL BOOK N YORK 1983, 1983. Text.