Bangs, D. H., & David H. Bangs. (1990). The: Methods to Understand and Control the Small Business' Number One Problem. Dover, NH: Upstart Pub. Co.
Trích dẫn kiểu ChicagoBangs, David H., và David H. Bangs. The: Methods to Understand and Control the Small Business' Number One Problem. Dover, NH: Upstart Pub. Co, 1990.
Deismireacht MLABangs, David H., và David H. Bangs. The: Methods to Understand and Control the Small Business' Number One Problem. Dover, NH: Upstart Pub. Co, 1990.
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