APA

Beekman J. A., . (1974). Two stochastic processes. New York: Halsted Press.

Chicago

Beekman John A, . 1974. Two stochastic processes. New York: Halsted Press.

Harvard

Beekman J. A., . (1974). Two stochastic processes. New York: Halsted Press.

MLA

Beekman John A, . Two stochastic processes. New York: Halsted Press. 1974.