Open Universityearth's Physical Resources Course Team & Open University, E. P. (1974). Implications. Open university press.
Chicago-стиль цитированияOpen Universityearth's Physical Resources Course Team and Earth's Physic Open University. Implications. Open university press, 1974.
MLA-цитированиеOpen Universityearth's Physical Resources Course Team and Earth's Physic Open University. Implications. Open university press, 1974.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.