Per-olof Astrand. (1988). Text book of work physiology. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoPer-olof Astrand. Text Book of Work Physiology. New York: McGraw-Hill, 1988.
MLA citiranjePer-olof Astrand. Text Book of Work Physiology. New York: McGraw-Hill, 1988.
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