APA (7th ed.) Citation

Coffey, P. (1918). Ontology or The theory of being: An introduction to general metaphysics (2nd imp.). Longmans, Green, and Co.

Chicago Style (17th ed.) Citation

Coffey, P. Ontology or The Theory of Being: An Introduction to General Metaphysics. 2nd imp. New York [etc.]: Longmans, Green, and Co, 1918.

MLA (9th ed.) Citation

Coffey, P. Ontology or The Theory of Being: An Introduction to General Metaphysics. 2nd imp. Longmans, Green, and Co, 1918.