Ralph M. Feather Jr., PhD, Assistant Professor Geoscience Department ... & Susan Leach Snyder, Retired Teacher, Consultant Jones Middle ... & Dinah Zike, Educational Consultant Dinah-Might Activities, Inc., ... (...)

Lithology (1)

Paul de Beukelaar & Marine Seignole

Гидрология (1)

David Fountain & Richard Smith & Tom Payne & Jean Lemieux (...)

Technique and technology of exploration works (1)

Савин Дмитрий Сергеевич

Инженерная геология (1)