Cita APA (7a ed.)

SMITH, R. L. (1966). ECOLOGY AND FIELD BIOLOGY. HARPER & ROW.

Cita Chicago Style (17a ed.)

SMITH, ROBERT LEO. ECOLOGY AND FIELD BIOLOGY. NEW YORK: HARPER & ROW, 1966.

Cita MLA (9a ed.)

SMITH, ROBERT LEO. ECOLOGY AND FIELD BIOLOGY. HARPER & ROW, 1966.