@book{533638,
	author = {Sazhina, Natalii︠a︡ Borisovna and Grushinskiĭ, N. P.},
	title = {Gravity prospecting / },
	publisher = {Mir, },
	year = {1971.},
	address = {Moscow : },
	note = {Translation of Gravitat︠s︡ionnai︠a︡ razvedka.}
}