Laboratory explorations in biology [kit] - New York : Science and Mankind, [n.d.] - 160 slides, 2 sound cassettes, 1 teacher's guide with scripts ; in container, 32 X 32 X 8 cm. - Laboratory explorations in biology [kit] ; part 1- 2 . Subjects--Topical Terms: Ecology--MethodologyEcology--Technique