Educational Systems Limited. (1968). Plants, animals and environment II: An E. S. L. group program. Ginn.
Style de citation Chicago (17e éd.)Educational Systems Limited. Plants, Animals and Environment II: An E. S. L. Group Program. London: Ginn, 1968.
Style de citation MLA (8e éd.)Educational Systems Limited. Plants, Animals and Environment II: An E. S. L. Group Program. Ginn, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.