Cita APA (7a ed.)

(1930). Elements of the library plan / by Herbert S. Hirshberg, based on the earlier edition by W. R. Eastman.

Cita Chicago Style (17a ed.)

Elements of the Library Plan / by Herbert S. Hirshberg, Based on the Earlier Edition by W. R. Eastman. 1930.

Cita MLA (9a ed.)

Elements of the Library Plan / by Herbert S. Hirshberg, Based on the Earlier Edition by W. R. Eastman. 1930.