Hechinger, F. M. (1966). Pre-school education today: New approaches to teaching three-, four-, and five-year-olds. Doubleday.
Cytowanie według stylu Chicago (wyd. 17)Hechinger, Fred M. Pre-school Education Today: New Approaches to Teaching Three-, Four-, and Five-year-olds. Garden City, N.Y: Doubleday, 1966.
Cytowanie według stylu MLA (wyd. 9)Hechinger, Fred M. Pre-school Education Today: New Approaches to Teaching Three-, Four-, and Five-year-olds. Doubleday, 1966.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..