APA

Gray S. W., . (1966). Before first grade: the early training project for culturally disadvantaged children. New York: Teachers College Press.

Chicago

Gray Susan Walton, . 1966. Before first grade: the early training project for culturally disadvantaged children. New York: Teachers College Press.

Harvard

Gray S. W., . (1966). Before first grade: the early training project for culturally disadvantaged children. New York: Teachers College Press.

MLA

Gray Susan Walton, . Before first grade: the early training project for culturally disadvantaged children. New York: Teachers College Press. 1966.