McLeod A. Alexander. (1914). Practical Instructions in the search for, and the determination of, the useful minerals, including the rare ores: For the Prospector, Miner, and as a Ready Reference for Everybody Interested in the Industry. New York, John Wiley & Sons, Inc., 1914.
Παραπομπή σε μορφή Chicago (17η εκδ.)McLeod A. Alexander. Practical Instructions in the Search for, and the Determination of, the Useful Minerals, Including the Rare Ores: For the Prospector, Miner, and as a Ready Reference for Everybody Interested in the Industry. New York, John Wiley & Sons, Inc., 1914, 1914.
Παραπομπή σε μορφή MLA (9th εκδ.)McLeod A. Alexander. Practical Instructions in the Search for, and the Determination of, the Useful Minerals, Including the Rare Ores: For the Prospector, Miner, and as a Ready Reference for Everybody Interested in the Industry. New York, John Wiley & Sons, Inc., 1914, 1914.