APA ציטוט

(1972). Britannica book of the year 1972. Chicago: Encyclpedia Britannica.

Trích dẫn kiểu Chicago

Britannica Book of the Year 1972. Chicago: Encyclpedia Britannica, 1972.

ציטוט MLA

Britannica Book of the Year 1972. Chicago: Encyclpedia Britannica, 1972.