The Century Handbook of Writing
by Garland Greever, Easley S. Jones
Publisher: The Century Company 1927
This handbook treats essential matters of grammar, diction, spelling, mechanics; and develops with thoroughness the principles of sentence structure. Larger units of composition it leaves to the texts in formal rhetoric. 
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by Edwin A. Abbott - ManyBooks
Almost everyone can be taught to write clearly. Force, elegance, and variety of style are more difficult to teach and learn; but clear writing can be reduced to rules. To teach the art of writing clearly is the main object of this book.
by William Strunk, Jr. - Bartleby.com
Asserting that one must first know the rules to break them, this classic reference book is a must-have for any student and conscientious writer. Intended for use in which the practice of composition is combined with the study of literature.
by Darrell Pitt - Smashwords
Writers speak about how to write, publish and promote your book in the age of digital publishing. Contains interviews with John Locke, Gordon Ferris, Stephen Carpenter, Dakota Banks, Linda Wisdom, Matthew Reilly, Loucinda McGary, and many more.
by Frederick W. Hamilton - Committee on education
Word study and English grammar are important for several reasons. A man's use of words is commonly taken as a measure of his knowledge and even of his intelligence. Carelessness often causes a man to be held in much less esteem than he deserves.