Severin, T. (1997). The spice islands voyage: The quest for alfred wallace, the man who shared darwin's discovery of evolution p. AUWSF.
Citazione stile Chigago Style (17a edizione)Severin, Tim. The Spice Islands Voyage: The Quest for Alfred Wallace, the Man Who Shared Darwin's Discovery of Evolution P. New York: AUWSF, 1997.
Citatione MLA (9a ed.)Severin, Tim. The Spice Islands Voyage: The Quest for Alfred Wallace, the Man Who Shared Darwin's Discovery of Evolution P. AUWSF, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.