Grinding wheels and their uses :
a handbook and textbook on modern grinding and polishing practice and theory /
by Johnson Heywood under the auspices of the Grinding wheel manufacturers association and the Abrasive grain association.

APA Citation

Heywood, J., Abrasive grain association., Grinding Wheel Manufacturers Association of the United States and Canada. (1938). Grinding wheels and their uses: a handbook and textbook on modern grinding and polishing practice and theory. Cleveland: The Penton publishing co..

MLA Citation

Heywood, Johnson, 1885-, Abrasive grain association, and Grinding Wheel Manufacturers Association of the United States and Canada. Grinding Wheels And Their Uses: a Handbook And Textbook On Modern Grinding And Polishing Practice And Theory. Cleveland: The Penton publishing co., 1938.

Warning: These citations may not always be complete (especially for serials).