Experiments in science. Text: Nelson Frederick Beeler & Franklyn M. Branley, illus.: Ruth Margaret Beck.
R594168. Experiments in science. Text: Nelson Frederick Beeler & Franklyn M. Branley, illus.: Ruth Margaret Beck. © 3Jun47; A13589. Nelson Frederick Beeler & Franklyn M. Branley (A); 24Dec74; R594168.
Nelson Frederick Beeler & Franklyn M. Branley|A