APA

Roeber E. C., Walz G. R. & Smith G. E. (1969). A strategy for guidance: a point of view and its implications. [New York]: Macmillan.

Chicago

Roeber Edward C, Walz Garry Richard and Smith Glenn Erle. 1969. A strategy for guidance: a point of view and its implications. [New York]: Macmillan.

Harvard

Roeber E. C., Walz G. R. and Smith G. E. (1969). A strategy for guidance: a point of view and its implications. [New York]: Macmillan.

MLA

Roeber Edward C, Walz Garry Richard and Smith Glenn Erle. A strategy for guidance: a point of view and its implications. [New York]: Macmillan. 1969.