APA

Strunk J. R, . (1968). The elements of style. New York: Macmillan Publishers.

Chicago

Strunk J. R, . 1968. The elements of style. New York: Macmillan Publishers.

Harvard

Strunk J. R, . (1968). The elements of style. New York: Macmillan Publishers.

MLA

Strunk J. R, . The elements of style. New York: Macmillan Publishers. 1968.