Henri P Keller. (1982). Evaluation program physics: Principles and problems (Reproducible Masters). Columbus, Ohio: Charles E. Merrill.
Chicago-стиль цитированияHenri P Keller. Evaluation Program Physics: Principles and Problems (Reproducible Masters). Columbus, Ohio: Charles E. Merrill, 1982.
MLA-цитированиеHenri P Keller. Evaluation Program Physics: Principles and Problems (Reproducible Masters). Columbus, Ohio: Charles E. Merrill, 1982.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.