APA aipamena

Twist, C. (1997). Macmillan Revised ENCYCLOPEDIA of SCIENCE The Environment 7. Macmillan Reference.

Chicago Style aipamena

Twist, Clint. Macmillan Revised ENCYCLOPEDIA of SCIENCE The Environment 7. Macmillan Reference, 1997.

MLA aipamena

Twist, Clint. Macmillan Revised ENCYCLOPEDIA of SCIENCE The Environment 7. Macmillan Reference, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.