Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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