Farmer, Walter A.
Systematic instruction in science for middle and high school years Walter A. Farmer, Margaret A. Farrell. - Reading, Mass. : Addison-Wesley Pub. Co., 1980. - xiii, 353 p. : ill. ; 24 cm.
БС 4779
Англи хэл дээр,
0201024357
science study and teaching (Higher)
Systematic instruction in science for middle and high school years Walter A. Farmer, Margaret A. Farrell. - Reading, Mass. : Addison-Wesley Pub. Co., 1980. - xiii, 353 p. : ill. ; 24 cm.
БС 4779
Англи хэл дээр,
0201024357
science study and teaching (Higher)