Hanson, E. D. (1964). Animal Diversity. Englewood Cliffs, New Jersey: Prentice-Hall.
Dyfyniad Arddull ChicagoHanson, Earld D. Animal Diversity. Englewood Cliffs, New Jersey: Prentice-Hall, 1964.
Dyfyniad MLAHanson, Earld D. Animal Diversity. Englewood Cliffs, New Jersey: Prentice-Hall, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.