Valman, H. B. (1980). The first year of life: Feeding and feeding problems.
シカゴスタイル引用形Valman, H B. The First Year of Life: Feeding and Feeding Problems. 1980.
MLA引用形式Valman, H B. The First Year of Life: Feeding and Feeding Problems. 1980.
警告: この引用は必ずしも正確ではありません.