APA (7th ed.) Zitazioa

Van Dyke, H. The Unknown Quantity: A Book of Romance and Some Half-Told Tales.

Chicago Style (17th ed.) Zitazioa

Van Dyke, Henry. The Unknown Quantity: A Book of Romance and Some Half-Told Tales.

MLA (9th ed.) Zitazioa

Van Dyke, Henry. The Unknown Quantity: A Book of Romance and Some Half-Told Tales.