Croucher, R. M. (1976). The Observer's Book of Motorcycles. London: Frederick Warne & CO LTD.
Chicago Style aipamenaCroucher, Robert M. The Observer's Book of Motorcycles. London: Frederick Warne & CO LTD, 1976.
MLA aipamenaCroucher, Robert M. The Observer's Book of Motorcycles. London: Frederick Warne & CO LTD, 1976.
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