Ю.П. ЖЕЛТОВ

Геология месторождений нефти, газа и конденсатов (1)

Bele? n Oliva-Urcia & Teresa Roma? n-Berdiel & Antonio M. Casas & Emilio L. Pueyo (...)

Lithology (1)

PETER GRAHAM

Geology of non-metallic minerals (1)

Deepak C. Srivastava & Vipul Rastogi & Rajit Ghosha (...)

Observatories. Instruments, devices and methods of astronomical observations (1)