Cita APA

Sabin, W. A. (2001). The Gregg reference manual (9th ed.). Boston: McGraw-Hill.

Citación estilo Chicago

Sabin, William A. The Gregg Reference Manual. 9th ed. Boston: McGraw-Hill, 2001.

Cita MLA

Sabin, William A. The Gregg Reference Manual. 9th ed. Boston: McGraw-Hill, 2001.