Book by E. L. Lehmann and (from 3rd edition) J. P. Romano
Book by E. L. Lehmann (First edition, 1959)
Book by E. L. Lehmann (Second edition, 1986)
Book by E. L. Lehmann and J. P. Romano (Third edition, 2005)
Book by E. L. Lehmann and J. P. Romano (Fourth edition, 2005; in two volumes)
Chapter published in 1956
Russian translation of book by E. L. Lehmann