APA način citiranja (7. izdanje)

Ewins, P., Ewins, P., & Perrins, C. (1986). The ecology of black guillemots Cepphus grylle in Shetland.

Čikaški stil citiranja (17. izdanje)

Ewins, P., Pete Ewins, i C. Perrins. The Ecology of Black Guillemots Cepphus Grylle in Shetland. 1986.

MLA način citiranja (9. izdanje)

Ewins, P., et al. The Ecology of Black Guillemots Cepphus Grylle in Shetland. 1986.