Boyd, Harper W.; Boyd, Harper W.; Webster, Frederick E.; Davis, Robert T.. (1980). Marketing management casebook / edited by Robert T. Davis, Harper W. Boyd, Frederick E. Webster. Homewood, Illinois :: Richard D. Irwin,.
Boyd, Harper W.; Boyd, Harper W.; Webster, Frederick E.; Davis, Robert T.. Marketing management casebook / edited by Robert T. Davis, Harper W. Boyd, Frederick E. Webster. Homewood, Illinois :: Richard D. Irwin,, 1980
Boyd, Harper W.; Boyd, Harper W.; Webster, Frederick E.; Davis, Robert T.. Marketing management casebook / edited by Robert T. Davis, Harper W. Boyd, Frederick E. Webster. Homewood, Illinois :: Richard D. Irwin,, 1980.