@book{24646,
	author = {Derwies, Vera de.},
	title = {Recherches géologiques et pétrographiques sur les laccolithes des environs de Piatigorsk (Caucase du nord)},
	publisher = {H. Kündig,},
	year = {1905.},
	address = {Genève,},
	note = {Several plates preceded by guard sheet with brief explanation.}
}