APA (7th ed.) Citation

Carver, T. N. (1921). Principles of national economy. Ginn and company.

Chicago Style (17th ed.) Citation

Carver, Thomas Nixon. Principles of National Economy. Boston, New York [etc.]: Ginn and company, 1921.

MLA (9th ed.) Citation

Carver, Thomas Nixon. Principles of National Economy. Ginn and company, 1921.