APA

Sands L. B., . (1949). An introduction to teaching in secondary schools. New York: Harper.

Chicago

Sands Lester Bruton, . 1949. An introduction to teaching in secondary schools. New York: Harper.

Harvard

Sands L. B., . (1949). An introduction to teaching in secondary schools. New York: Harper.

MLA

Sands Lester Bruton, . An introduction to teaching in secondary schools. New York: Harper. 1949.