APA

Pickett S. T., Ostfeld R. S., Likens G. E. & Shachak M. (1997). The ecological basis of conservation. New York: Chapman & Hall.

Chicago

Pickett Steward T.A, Ostfeld Richard S, Likens Gene E and Shachak Moshe. 1997. The ecological basis of conservation. New York: Chapman & Hall.

Harvard

Pickett S. T., Ostfeld R. S., Likens G. E. and Shachak M. (1997). The ecological basis of conservation. New York: Chapman & Hall.

MLA

Pickett Steward T.A, Ostfeld Richard S, Likens Gene E and Shachak Moshe. The ecological basis of conservation. New York: Chapman & Hall. 1997.