APA (7th ed.) Citation

Wells, R. E. (1999). Is a blue whale the biggest thing there is? Franklin Watts.

Chicago Style (17th ed.) Citation

Wells, Robert E. Is a Blue Whale the Biggest Thing There Is? London: Franklin Watts, 1999.

MLA (9th ed.) Citation

Wells, Robert E. Is a Blue Whale the Biggest Thing There Is? Franklin Watts, 1999.