Cita APA (7a ed.)

Crosby, A. W. (1994). Germs, seeds & animals: Studies in ecological history. M.E. Sharpe.

Cita Chicago Style (17a ed.)

Crosby, Alfred W. Germs, Seeds & Animals: Studies in Ecological History. Armonk, N.Y: M.E. Sharpe, 1994.

Cita MLA (9a ed.)

Crosby, Alfred W. Germs, Seeds & Animals: Studies in Ecological History. M.E. Sharpe, 1994.