APA

Miller J. L., Boyd F., Cohen R. F. & Numrich C. (1998). NorthStar. New York: Longman.

Chicago

Miller Judy L, Boyd Frances, Cohen Robert F and Numrich Carol. 1998. NorthStar. New York: Longman.

Harvard

Miller J. L., Boyd F., Cohen R. F. and Numrich C. (1998). NorthStar. New York: Longman.

MLA

Miller Judy L, Boyd Frances, Cohen Robert F and Numrich Carol. NorthStar. New York: Longman. 1998.