Heron, A. M. Directory of the economic minerals of Pakistan. Geological Survey of Pakistan.
Chicago Style (17th ed.) CitationHeron, Alexander Macmillan. Directory of the Economic Minerals of Pakistan. Karachi: Geological Survey of Pakistan.
MLA (8th ed.) CitationHeron, Alexander Macmillan. Directory of the Economic Minerals of Pakistan. Geological Survey of Pakistan.
Warning: These citations may not always be 100% accurate.