Farnum, C., Jr. (1843). Practical grammar: A grammar of the English language, on an improved plan; in which the principles of the science are clearly and briefly stated, and their application in practice is made familiar by copious and appropriate exercises (2nd ed.). Benjamin B. Mussey.

Farnum, Caleb, Jr. Practical Grammar: A Grammar of the English Language, on an Improved Plan; in Which the Principles of the Science Are Clearly and Briefly Stated, and Their Application in Practice Is Made Familiar by Copious and Appropriate Exercises. 2nd ed. Boston: Benjamin B. Mussey, 1843.

Farnum, Caleb, Jr. Practical Grammar: A Grammar of the English Language, on an Improved Plan; in Which the Principles of the Science Are Clearly and Briefly Stated, and Their Application in Practice Is Made Familiar by Copious and Appropriate Exercises. 2nd ed. Benjamin B. Mussey, 1843.