APA
Ingram W., Milton J. & Swaim K. M. j. a. (1972). A concordance to Milton's English poetry. Oxford: Clarendon Press.
Chicago
Ingram William, Milton John and Swaim Kathleen M jt author. 1972. A concordance to Milton's English poetry. Oxford: Clarendon Press.
Harvard
Ingram W., Milton J. and Swaim K. M. j. a. (1972). A concordance to Milton's English poetry. Oxford: Clarendon Press.
MLA
Ingram William, Milton John and Swaim Kathleen M jt author. A concordance to Milton's English poetry. Oxford: Clarendon Press. 1972.