Παραπομπή APA

Crosby, A. W. . .. (1986). Ecological imperialism: The biological expansion of Europe,900-1900. Cambridge University press.

Παραπομπή Chicago Style

Crosby, Alfred W. Ecological Imperialism: The Biological Expansion of Europe,900-1900. Cambridge: Cambridge University press, 1986.

Παραπομπή MLA

Crosby, Alfred W. Ecological Imperialism: The Biological Expansion of Europe,900-1900. Cambridge University press, 1986.