A. Nicol & J.J. Walsh & P. Villamor & H. Seebeck (...)

Geological and geophysical studies of the deep structure of the Earth (1)

Dieter Schwarzenbach & A. Alan Pinkerton

Mineralogy (1)

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

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

Robert U. Ayres & Leslie W. Ayres

Methods of prospecting and exploration of mineral deposits (1)