Found 3 results for your keywords: author=Humphreys, David -

The ramaking of the mining industry

1
(Humphreys, David)

World-class bull

1
(Humphreys, John) (Ahmed, Zafar U.) (Pryor, Mildred)

Porject and cost engineers' handbook /edited by Kenneth K. Humphreys

0
(Humphreys, Kenneth King)