Buckley, E. A. (1961). How to increase sales with letters. McGraw Hill.
Chicago Edition CitationBuckley, Earle A. How to Increase Sales with Letters. McGraw Hill, 1961.
MLA引文Buckley, Earle A. How to Increase Sales with Letters. McGraw Hill, 1961.
警告:這些引文格式不一定是100%准確.