Macfadyen, A. (1963). Animal ecology: Aims and methods (2nd ed.). Sri Isaac Pitman.
Dyfyniad Arddull ChicagoMacfadyen, A. Animal Ecology: Aims and Methods. 2nd ed. London: Sri Isaac Pitman, 1963.
Dyfyniad MLAMacfadyen, A. Animal Ecology: Aims and Methods. 2nd ed. Sri Isaac Pitman, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.