APA (7th ed.) Citation

Spiller, M. R. G. (1992). The development of the sonnet: An introduction. Routledge.

Chicago Style (17th ed.) Citation

Spiller, Michael R. G. The Development of the Sonnet: An Introduction. London New York: Routledge, 1992.

MLA (8th ed.) Citation

Spiller, Michael R. G. The Development of the Sonnet: An Introduction. Routledge, 1992.