Spellergerg, I. F., & Pritchard, A. J. (1984). Ecology, ecosystems, management and biology teaching. Division of Science, Technical and Vocational Education, UNESCO.
Style de citation Chicago (17e éd.)Spellergerg, Ian F., et Alan J. Pritchard. Ecology, Ecosystems, Management and Biology Teaching. Paris: Division of Science, Technical and Vocational Education, UNESCO, 1984.
Style de citation MLA (9e éd.)Spellergerg, Ian F., et Alan J. Pritchard. Ecology, Ecosystems, Management and Biology Teaching. Division of Science, Technical and Vocational Education, UNESCO, 1984.
Attention : ces citations peuvent ne pas être correctes à 100%.