APA

Collier C., Collier J. L., . (1998). Clash of cultures. New York: Benchmark Books.

Chicago

Collier Christopher, Collier James Lincoln, . 1998. Clash of cultures. New York: Benchmark Books.

Harvard

Collier C., Collier J. L., . (1998). Clash of cultures. New York: Benchmark Books.

MLA

Collier Christopher, Collier James Lincoln, . Clash of cultures. New York: Benchmark Books. 1998.