APA (7th ed.) Citation

Lankford, F. G. (1975). Essential mathematics (3ª ed.). Harcourt Brace Jovanovich.

Chicago Style (17th ed.) Citation

Lankford, Francis G. Essential Mathematics. 3ª ed. Harcourt Brace Jovanovich, 1975.

MLA (9th ed.) Citation

Lankford, Francis G. Essential Mathematics. 3ª ed. Harcourt Brace Jovanovich, 1975.

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