Petch, Thomas, 1870?-1948. The physiology & diseases of Hevea brasiliensis, the premier plantation rubber tree. By T. Petch. - London, Dulau & Co., limited, 1911. - 4 p. l., 268 p. XVI pl. (incl. col. front.) 22 cm. Bibliographical references interspersed. LCCN: agr11001735 LC Class. No.: SB608.I6 / P4