Cita APA

Boehm, D., McWhirter, N., & Russel, A. (1988). Guinness book of world records: 1988.

Chicago Edition Citation

Boehm, David, Norris McWhirter, i Alan Russel. Guinness Book of World Records: 1988. Toronto, Bantam Books, 1988.

Cita MLA

Boehm, David, et al. Guinness Book of World Records: 1988. 1988.