APA
Clark Leonard .H & Starr Irving .S, . (1967). Secondary School Teaching Methods Second Edition. New York: Macmillan Publishing Company.
Chicago
Clark Leonard .H & Starr Irving .S, . 1967. Secondary School Teaching Methods Second Edition. New York: Macmillan Publishing Company.
Harvard
Clark Leonard .H & Starr Irving .S, . (1967). Secondary School Teaching Methods Second Edition. New York: Macmillan Publishing Company.
MLA
Clark Leonard .H & Starr Irving .S, . Secondary School Teaching Methods Second Edition. New York: Macmillan Publishing Company. 1967.