Hampdem Engineering Corporation. (1971). Student laboratory experiments for hampden bulletin 120 universal laboratory machine. Hampden Engineering Corporation.
Citace podle Chicago (17th ed.)Hampdem Engineering Corporation. Student Laboratory Experiments for Hampden Bulletin 120 Universal Laboratory Machine. East Longmeadow: Hampden Engineering Corporation, 1971.
Citace podle MLA (9th ed.)Hampdem Engineering Corporation. Student Laboratory Experiments for Hampden Bulletin 120 Universal Laboratory Machine. Hampden Engineering Corporation, 1971.
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