APA

Williams D. R., Pople R. G., Showler D. A., Dicks L. V., Child M. F., Ermgassen E. K. H. J. z. & Sutherland W. J. (2013). Bird conservation. Exeter: Pelagic Publishing.

Chicago

Williams David R, Pople Robert G, Showler David A, Dicks Lynn V, Child Matthew F, Ermgassen Erasmus K H J zu and Sutherland William J. 2013. Bird conservation. Exeter: Pelagic Publishing.

Harvard

Williams D. R., Pople R. G., Showler D. A., Dicks L. V., Child M. F., Ermgassen E. K. H. J. z. and Sutherland W. J. (2013). Bird conservation. Exeter: Pelagic Publishing.

MLA

Williams David R, Pople Robert G, Showler David A, Dicks Lynn V, Child Matthew F, Ermgassen Erasmus K H J zu and Sutherland William J. Bird conservation. Exeter: Pelagic Publishing. 2013.