Cita APA

Welcher, F. J. (1947). Organic analytical reagents. D. Van Nostrand company, inc..

Citación estilo Chicago

Welcher, Frank Johnson. Organic Analytical Reagents. New York: D. Van Nostrand company, inc., 1947.

Cita MLA

Welcher, Frank Johnson. Organic Analytical Reagents. New York: D. Van Nostrand company, inc., 1947.