APA

Sabin W., . (2001). The Gregg Reference Manual. New York: Glencoe. McGraw-Hill.

Chicago

Sabin W.A, . 2001. The Gregg Reference Manual. New York: Glencoe. McGraw-Hill.

Harvard

Sabin W., . (2001). The Gregg Reference Manual. New York: Glencoe. McGraw-Hill.

MLA

Sabin W.A, . The Gregg Reference Manual. New York: Glencoe. McGraw-Hill. 2001.