American Psychological Association
Keller, James ( 1950 ). Careers That Change Your World Christopher Guides for Jobs That Make the Future ( 00 ed. ). Perma Books.
Modern Language Association
Keller, James. Careers That Change Your World Christopher Guides for Jobs That Make the Future . Perma Books. 1950
Chicago Citation
Keller, James. Careers That Change Your World Christopher Guides for Jobs That Make the Future . 00 .New York
: Perma Books, 1950.
American Medical Association
Keller, James. Careers That Change Your World Christopher Guides for Jobs That Make the Future . Perma Books; 1950.