Caldwell, J. H., Karp, K. S., Bay Williams, J. M., Rathmell, E., & Zbiek, R. M. Developing essential understanding of addition and subtraction for teaching mathematics in prekindergarten-grade 2.
Цитирование в стиле Чикаго (17-е изд.)Caldwell, Janet H., Karen S. Karp, Jannifer M. Bay Williams, Ed Rathmell, и Rose Mary Zbiek. Developing Essential Understanding of Addition and Subtraction for Teaching Mathematics in Prekindergarten-grade 2.
Цитирование MLA (8-е изд.)Caldwell, Janet H., et al. Developing Essential Understanding of Addition and Subtraction for Teaching Mathematics in Prekindergarten-grade 2.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.