1.
, , . Conditionals. Oxford: Clarendon Press; 1997.
, et . Conditionals. Oxford : Clarendon Press, 20 mai 1997. ISBN 978-0-19-875127-4
Woods Michael J., Wiggins David Kenneth, & Edgington Dorothy. (1997). Conditionals. Clarendon Press.
MLA (8th ed.) CitationWoods Michael J., et al. Conditionals. Clarendon Press, 1997.
Warning: These citations may not always be 100% accurate.