Saegart, W. E., & Lewis, D. E. Characteristics of Philippine porphyry copper deposits and summary of current production and reserves. s.n.].
Цитирование в стиле Чикаго (17-е изд.)Saegart, William E., и Dan E. Lewis. Characteristics of Philippine Porphyry Copper Deposits and Summary of Current Production and Reserves. [S.l: s.n.].
Цитирование MLA (9-е изд.)Saegart, William E., и Dan E. Lewis. Characteristics of Philippine Porphyry Copper Deposits and Summary of Current Production and Reserves. s.n.].
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.