APA aipamena

George B. Johnson. (2000). The living world. Boston, MA: McGraw-Hill.

Chicago Style aipamena

George B. Johnson. The Living World. Boston, MA: McGraw-Hill, 2000.

MLA aipamena

George B. Johnson. The Living World. Boston, MA: McGraw-Hill, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.