Economic evaluations in exploration
Wellmer, F W
Economic evaluations in exploration - 2nd ed. - New Delhi: Springer, 1965 - 250p.
978354073557
Geology
551.460 / 7 WEL
Economic evaluations in exploration - 2nd ed. - New Delhi: Springer, 1965 - 250p.
978354073557
Geology
551.460 / 7 WEL