Gaya APA

Pussell, Sarah. (1993). Keanekaragaman Hayati (1993) . Switzerland: WWF.

Gaya Chicago

Pussell, Sarah. Keanekaragaman Hayati (1993). Switzerland: WWF, 1993. Printed Book.

Gaya MLA

Pussell, Sarah. Keanekaragaman Hayati (1993). Switzerland: WWF, 1993. Printed Book.

Gaya Turabian

Pussell, Sarah. Keanekaragaman Hayati (1993). Switzerland: WWF, 1993. Printed Book.