Παραπομπή APA

Bradshaw, M. J. (1979). Earth, the living planet. English language book.

Παραπομπή Chicago Style

Bradshaw, M. J. Earth, the Living Planet. Great britain: English language book, 1979.

Παραπομπή MLA

Bradshaw, M. J. Earth, the Living Planet. English language book, 1979.