APA

Wesson R. G., . (1967). The imperial order. Berkeley: University of California Press.

Chicago

Wesson Robert G, . 1967. The imperial order. Berkeley: University of California Press.

Harvard

Wesson R. G., . (1967). The imperial order. Berkeley: University of California Press.

MLA

Wesson Robert G, . The imperial order. Berkeley: University of California Press. 1967.