APA (7th ed.) Citation

Dumont, L. L. (1980). Consonant articulation drills: Drill lists for the most frequently defective consonants (2nd ed.). Interstate Printers & Publishers.

Chicago Style (17th ed.) Citation

Dumont, Lora L. Consonant Articulation Drills: Drill Lists for the Most Frequently Defective Consonants. 2nd ed. Danville, Ill.: Interstate Printers & Publishers, 1980.

MLA (9th ed.) Citation

Dumont, Lora L. Consonant Articulation Drills: Drill Lists for the Most Frequently Defective Consonants. 2nd ed. Interstate Printers & Publishers, 1980.

Warning: These citations may not always be 100% accurate.