Cita APA

Norris D. McWhirter. (1983). Guinness book of records (30th.). Guinness Superlatives.

Citación estilo Chicago

Norris D. McWhirter. Guinness Book of Records. 30th. Enfield: Guinness Superlatives, 1983.

Cita MLA

Norris D. McWhirter. Guinness Book of Records. 30th. Guinness Superlatives, 1983.