Crawford, N. A., & Menninger, K. A. (1930). The healthy-minded child. Coward-McCann, inc..
Dyfyniad Arddull ChicagoCrawford, Nelson Antrim, and Karl A. Menninger. The Healthy-minded Child. New York: Coward-McCann, inc., 1930.
Dyfyniad MLACrawford, Nelson Antrim, and Karl A. Menninger. The Healthy-minded Child. Coward-McCann, inc., 1930.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.