APA (7e ed.) Bronvermelding

Barrett, J. M. (1986). Biology. Prentice Hall.

Chicago (17e ed.) Bronvermelding

Barrett, James M. Biology. Englewood Cliffs, New Jersey: Prentice Hall, 1986.

MLA (9e ed.) Bronvermelding

Barrett, James M. Biology. Prentice Hall, 1986.