APA Style

petrof, J, V, .. et al (1972). small business management : concepts and techniques for improving Decisions (Edition1). United states of America: ‎ Macmillan/McGraw-Hill.

MLA Style

petrof, John, V, .. et al. "small business management : concepts and techniques for improving Decisions". Edition1 United states of America: ‎ Macmillan/McGraw-Hill, 1972. BOOK.