Cita APA (7th ed.)

Welcher, F. J. (1955). Semimicro qualitative analysis. Van Nostrand.

Cita Chicago (17th ed.)

Welcher, Frank J. Semimicro Qualitative Analysis. New York: Van Nostrand, 1955.

Cita MLA (9th ed.)

Welcher, Frank J. Semimicro Qualitative Analysis. Van Nostrand, 1955.