APA ציטוט

Whitfield, P. (1990). Our mysterious planet: Mysteries of the natural world. Cassell.

Chicago Style (17th ed.) Citation

Whitfield, Philip. Our Mysterious Planet: Mysteries of the Natural World. London: Cassell, 1990.

ציטוט MLA

Whitfield, Philip. Our Mysterious Planet: Mysteries of the Natural World. Cassell, 1990.