Ryan, J. D., & J. D. Ryan; Gail P. Hiduke. (2006). Small business: An entrepreneur's business plan. [Mason, Ohio?]: Thomson South-Western.
Παραπομπή Chicago StyleRyan, J. D., και J. D. Ryan; Gail P. Hiduke. Small Business: An Entrepreneur's Business Plan. [Mason, Ohio?]: Thomson South-Western, 2006.
Παραπομπή MLARyan, J. D., και J. D. Ryan; Gail P. Hiduke. Small Business: An Entrepreneur's Business Plan. [Mason, Ohio?]: Thomson South-Western, 2006.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.