APA aipamena

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

Chicago Style aipamena

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.

MLA aipamena

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