Langstroth, L. L., Dadant, C., & Dadant, C. P. (1922). Langstroth on the hive & honey bee (Twenty-first edition.). The American bee journal.
Chicago Style (17th ed.) CitationLangstroth, L. L., Charles Dadant, and C. P. Dadant. Langstroth on the Hive & Honey Bee. Twenty-first edition. Hamilton, Ill.: The American bee journal, 1922.
MLA (9th ed.) CitationLangstroth, L. L., et al. Langstroth on the Hive & Honey Bee. Twenty-first edition. The American bee journal, 1922.
Warning: These citations may not always be 100% accurate.