Gaya APA

Villee, C, A., D, I, W, W, F, I, B, R. (1984). **General zoology . Philadelphia: Philadelphia: Saunders College, 1984.

Gaya MLA

Villee, Calude, A., D, I., Walker,, Warren, F, II., Barnes,, Robert. "**General zoology". Philadelphia: Philadelphia: Saunders College, 1984, 1984. Text.