APA (7th ed.) Citation

London, H. H. (1973). Principles and techniques of vocational guidance. C. E. Merrill Pub. Co..

Chicago Style (17th ed.) Citation

London, Hoyt H. Principles and Techniques of Vocational Guidance. Columbus, Ohio: C. E. Merrill Pub. Co., 1973.

MLA (9th ed.) Citation

London, Hoyt H. Principles and Techniques of Vocational Guidance. C. E. Merrill Pub. Co., 1973.