Cita APA

(1990). Bird census and atlas studies. Checoslovakia: Institute of Applied Ecology and Ecotechnology.

Citación estilo Chicago

Bird Census and Atlas Studies. Checoslovakia: Institute of Applied Ecology and Ecotechnology, 1990.

Cita MLA

Bird Census and Atlas Studies. Checoslovakia: Institute of Applied Ecology and Ecotechnology, 1990.

Precaución: Estas citas no son 100% exactas.