Pearson, G. H. (1972). Valve design, manually operated patterns / (by) G.H. Pearson. Pitman.
Chicago Edition CitationPearson, George Harold. Valve Design, Manually Operated Patterns / (by) G.H. Pearson. London: Pitman, 1972.
MLA Edition CitationPearson, George Harold. Valve Design, Manually Operated Patterns / (by) G.H. Pearson. Pitman, 1972.
Warning: These citations may not always be 100% accurate.