APA (7th ed.) Citation

Allen, I. A. (1980). The development of an environmental science course for primary schools, grades 1-7 in Zimbabwe Rhodesia. [publisher not identified].

Chicago Style (17th ed.) Citation

Allen, Irma A. The Development of an Environmental Science Course for Primary Schools, Grades 1-7 in Zimbabwe Rhodesia. [Place of publication not identified]: [publisher not identified], 1980.

MLA (9th ed.) Citation

Allen, Irma A. The Development of an Environmental Science Course for Primary Schools, Grades 1-7 in Zimbabwe Rhodesia. [publisher not identified], 1980.