. Elements of acoustical engineering. Electro-acoustics; Sound. 15 0 15 15 0 15 15 ° 15 15 ° 15 15 g 15. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Olson, Harry Ferdinand, 1901-. New York, D. Van Nostrand company, inc.

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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity