APA

De Vries M. A., Evans W. J., . (1990). The new Robert's rules of order. New York: Signet.

Chicago

De Vries Mary A, Evans William J, . 1990. The new Robert's rules of order. New York: Signet.

Harvard

De Vries M. A., Evans W. J., . (1990). The new Robert's rules of order. New York: Signet.

MLA

De Vries Mary A, Evans William J, . The new Robert's rules of order. New York: Signet. 1990.