Gaya APA

Swanson, C, P., Wilson, E, O. (1992). The diversity of life . Massachusetts: Massachusetts: The Belknap Press of Havard University Press; 1992.

Gaya MLA

Swanson, Carl, P.., Wilson, Edward, O.. "The diversity of life". Massachusetts: Massachusetts: The Belknap Press of Havard University Press; 1992, 1992. Text.