APA aipamena

Bales, S. F. (1991). Burpee Americam gardening series annuals. Prentice Hall Press.

Chicago Style aipamena

Bales, Suzanne Frutig. Burpee Americam Gardening Series Annuals. Prentice Hall Press, 1991.

MLA aipamena

Bales, Suzanne Frutig. Burpee Americam Gardening Series Annuals. Prentice Hall Press, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.