1. A text book of ore dressing
Author: / by Robert H.Richards and Charles E. Locke ,assisted by Reinhardt Schuhmann.
Library: National Library and Archives of Islamic Republic of Iran (Tehran)
Subject: سنگ معدن, --آمادهسازی
Classification :
TN
۵۰۰
/
ر
۹
ت
۸ ۱۳۳۲
