Cita APA (7th ed.)

Grove, A. J., & Newell, G. E. (1969). Animal biology. University Tutorial P.

Cita Chicago (17th ed.)

Grove, Alfred John, i G. E. Newell. Animal Biology. London: University Tutorial P, 1969.

Cita MLA (9th ed.)

Grove, Alfred John, i G. E. Newell. Animal Biology. University Tutorial P, 1969.