Crosby, A. W. (1994). Germs, seeds & animals: Studies in ecological history. M.E. Sharpe.
Chicagoスタイル(17版)引用形式Crosby, Alfred W. Germs, Seeds & Animals: Studies in Ecological History. Armonk, N.Y: M.E. Sharpe, 1994.
MLA(9版)引用形式Crosby, Alfred W. Germs, Seeds & Animals: Studies in Ecological History. M.E. Sharpe, 1994.
警告: この引用は必ずしも正確ではありません.