Müller, H. J., & Herschel, K. (1951). Was Tiere erleben (21.-40. Tausend.). Kinderbuchverlag.
Chicago Style (17th ed.) CitationMüller, Hans Joachim, and Kurt Herschel. Was Tiere Erleben. 21.-40. Tausend. Berlin: Kinderbuchverlag, 1951.
MLA (8th ed.) CitationMüller, Hans Joachim, and Kurt Herschel. Was Tiere Erleben. 21.-40. Tausend. Kinderbuchverlag, 1951.
Warning: These citations may not always be 100% accurate.