Gaya APA

inc., E, B. et al (1997). The new encyclopaedia britannica in 32 volumes Propaedia outline of knowledge. guide to the britannica . : britanica.

Gaya MLA

inc., Encyclopaedia, Britannica,. et al. "The new encyclopaedia britannica in 32 volumes Propaedia outline of knowledge. guide to the britannica". : britanica, 1997. Text.