APA

Fitz-enz J., .The Roi of human Capital. New York: AMACOM.

Chicago

Fitz-enz Jac, .The Roi of human Capital. New York: AMACOM.

Harvard

Fitz-enz J., .The Roi of human Capital. New York: AMACOM.

MLA

Fitz-enz Jac, .New York: AMACOM. .