APA
Flegg Graham, . (1983). Numbers : Their history and meaning. Penguin Books, New York: .
Chicago
Flegg Graham, . 1983. Numbers : Their history and meaning. Penguin Books, New York: .
Harvard
Flegg Graham, . (1983). Numbers : Their history and meaning. Penguin Books, New York: .
MLA
Flegg Graham, . Numbers : Their history and meaning. Penguin Books, New York: . 1983.