Cita APA

Maps.com (Firm) & ebrary, Inc. (1999). The spread of agriculture. Maps.com.

Citación estilo Chicago

Maps.com (Firm) and Inc ebrary. The Spread of Agriculture. [S.l.]: Maps.com, 1999.

Cita MLA

Maps.com (Firm) and Inc ebrary. The Spread of Agriculture. Maps.com, 1999.

Warning: These citations may not always be 100% accurate.