@book{229247,
	author = {Sacks, Gerald E. and ProQuest (Firm)},
	title = {Mathematical logic in the 20th century},
	publisher = {Singapore University Press :},
	year = {c2003.},
	address = {Singapore :},
	url = {https://ebookcentral.proquest.com/lib/kuct-ebooks/detail.action?docID=234351}
}