Cita APA (7a ed.)

READER'S DIGEST. (2004). READER'S DIGEST KNOWLEDGE QUEST: THE NATURAL WORLD. THE READER'S DIGEST ASSOCIATION LIMITED.

Cita Chicago Style (17a ed.)

READER'S DIGEST. READER'S DIGEST KNOWLEDGE QUEST: THE NATURAL WORLD. LONDON: THE READER'S DIGEST ASSOCIATION LIMITED, 2004.

Cita MLA (9a ed.)

READER'S DIGEST. READER'S DIGEST KNOWLEDGE QUEST: THE NATURAL WORLD. THE READER'S DIGEST ASSOCIATION LIMITED, 2004.