Cita APA (7th ed.)

Webster’s – Marriam. (1998). Concise Handbook for Writer`s (6th ed.). Mc Graw Hill.

Cita Chicago (17th ed.)

Webster’s – Marriam. Concise Handbook for Writer`s. 6th ed. America: Mc Graw Hill, 1998.

Cita MLA (9th ed.)

Webster’s – Marriam. Concise Handbook for Writer`s. 6th ed. Mc Graw Hill, 1998.