APA

Colby F. O., . (1964). University pronouncing dictionary of troublesome words. New York - US: Thomas Y. Crowel Company.

Chicago

Colby Frank O, . 1964. University pronouncing dictionary of troublesome words. New York - US: Thomas Y. Crowel Company.

Harvard

Colby F. O., . (1964). University pronouncing dictionary of troublesome words. New York - US: Thomas Y. Crowel Company.

MLA

Colby Frank O, . University pronouncing dictionary of troublesome words. New York - US: Thomas Y. Crowel Company. 1964.