APA (7th ed.) Citation

Grigg , M., & Rooum , D. (1965). The Challenor Case. Penguin Books.

Chicago Style (17th ed.) Citation

Grigg , Mary, and Donald Rooum. The Challenor Case. Penguin Books, 1965.

MLA (8th ed.) Citation

Grigg , Mary, and Donald Rooum. The Challenor Case. Penguin Books, 1965.

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