Gager, C. S. (1919). A laboratory guide for general botany (2d ed.). P. Blakiston's Son & Co..
Lua i Stíl Chicago (17ú heag.)Gager, C. Stuart. A Laboratory Guide for General Botany. 2d ed. Philadelphia: P. Blakiston's Son & Co., 1919.
Lua MLA (8ú heag.)Gager, C. Stuart. A Laboratory Guide for General Botany. 2d ed. P. Blakiston's Son & Co., 1919.
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