Иванов Иван Иванович & Петров Петр Петрович

Стратиграфия (1)

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)

Неизвестный

Вопросы астрономии (1)

S.E. Laubach & P. Eichhubl & C. Hilgers & R.H. Lander (...)