Gardner, E. H. (1919). Effective business letters: Their requirements and preparation, with specific directions for the various types of letters commonly used in business. The Ronald Press Co.
Chicago Style (17th ed.) CitationGardner, Edward Hall. Effective Business Letters: Their Requirements and Preparation, with Specific Directions for the Various Types of Letters Commonly Used in Business. New York: The Ronald Press Co, 1919.
MLA (9th ed.) CitationGardner, Edward Hall. Effective Business Letters: Their Requirements and Preparation, with Specific Directions for the Various Types of Letters Commonly Used in Business. The Ronald Press Co, 1919.
Warning: These citations may not always be 100% accurate.