APA (7th ed.) Citation

Clancy's & Greenberg. (1999). Shadow watch. Penguin Books.

Chicago Style (17th ed.) Citation

Clancy's and Greenberg. Shadow Watch. England: Penguin Books, 1999.

MLA (8th ed.) Citation

Clancy's and Greenberg. Shadow Watch. Penguin Books, 1999.

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