@book{10952,
	author = {Jeffreys, Harold, and Jeffreys, Bertha Swirles,},
	title = {Methods of mathematical physics / },
	publisher = {The University press,},
	year = {c1946.},
	address = {Cambridge [Eng.] : },
	note = {Includes most of Harold Jeffreys' "Operational methods in mathematical physics" and "Cartesian tensors." cf. Pref.}
}