Mayer, . G. R. (1982). Alternative strategies including methodologies for learning-teaching of biology at school level for relevance and appropriate skill development for everyday life. Division of Science, Technical and Vocational Education, Unesco.
Chicago-referens (17:e uppl.)Mayer, G. Rex. Alternative Strategies Including Methodologies for Learning-teaching of Biology at School Level for Relevance and Appropriate Skill Development for Everyday Life. Paris: Division of Science, Technical and Vocational Education, Unesco, 1982.
MLA-referens (9:e uppl.)Mayer, G. Rex. Alternative Strategies Including Methodologies for Learning-teaching of Biology at School Level for Relevance and Appropriate Skill Development for Everyday Life. Division of Science, Technical and Vocational Education, Unesco, 1982.