Cita APA

Ludy, R. B., & Youngken, H. W. (1926). Answers to questions prescribed to pharmaceutical state boards (3d ed., rev. and enl.). J.J. McVey.

Citación estilo Chicago

Ludy, Robert Borneman, and Heber Wilkinson Youngken. Answers to Questions Prescribed to Pharmaceutical State Boards. 3d ed., rev. and enl. Philadelphia: J.J. McVey, 1926.

Cita MLA

Ludy, Robert Borneman, and Heber Wilkinson Youngken. Answers to Questions Prescribed to Pharmaceutical State Boards. 3d ed., rev. and enl. J.J. McVey, 1926.