APA

Strang R., . (1949). Educational Guidance. New York: Macmillan.

Chicago

Strang Ruth, . 1949. Educational Guidance. New York: Macmillan.

Harvard

Strang R., . (1949). Educational Guidance. New York: Macmillan.

MLA

Strang Ruth, . Educational Guidance. New York: Macmillan. 1949.