Cita APA

McFarlan, D. (1990). The guinness book of records 1991 (Ed.37.).

Chicago Edition Citation

McFarlan, Donald. The Guinness Book of Records 1991. Ed.37. Barcelona, Guiness Publishin Ltd, 1990.

Cita MLA

McFarlan, Donald. The Guinness Book of Records 1991. Ed.37. 1990.