APA (7th ed.) Citation

Mahy, M., & Froud, B. (1975). Ultra-violet catastrophe! , or, The unexpected walk with Great-Uncle Magnus Pringle. Parents' Magazine Press.

Chicago Style (17th ed.) Citation

Mahy, Margaret, and Brian Froud. Ultra-violet Catastrophe! , or, The Unexpected Walk with Great-Uncle Magnus Pringle. New York: Parents' Magazine Press, 1975.

MLA (9th ed.) Citation

Mahy, Margaret, and Brian Froud. Ultra-violet Catastrophe! , or, The Unexpected Walk with Great-Uncle Magnus Pringle. Parents' Magazine Press, 1975.