APA Citation

HUMPHREY, P., Trotter, S., & Ramsay, H. (2011). What makes it snow? London: Evans Publishing Group.

Chicago Style Citation

HUMPHREY, Paul, Stuart Trotter, and Helena Ramsay. What Makes It Snow? London: Evans Publishing Group, 2011.

MLA Citation

HUMPHREY, Paul, Stuart Trotter, and Helena Ramsay. What Makes It Snow? London: Evans Publishing Group, 2011.

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