International learning system corporation limited. (1970). The new caxton encyclopedia 1970 yearbook: A yearbook covering the events of 1969. Purnell and sons.
Цитирование в стиле Чикаго (17-е изд.)International learning system corporation limited. The New Caxton Encyclopedia 1970 Yearbook: A Yearbook Covering the Events of 1969. London: Purnell and sons, 1970.
Цитирование MLA (8-е изд.)International learning system corporation limited. The New Caxton Encyclopedia 1970 Yearbook: A Yearbook Covering the Events of 1969. Purnell and sons, 1970.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.