The cultivation and improvement of the plantation rubber crop / Paul Rennodden Wycherley.

per Wycherley, P. R. (Paul Rennodden).

Conservation in Malaysia : a manual on the conservation of Malaysia's renewable natural resources / P.R. Wycherly.

per Wycherley, P. R. (Paul Rennodden).

Rainfall in Malaysia ; a study of its occurrence, with tables of probability of rainfall at selected stations, and an introduction to hydrology in rubber plantations / by P.R. Wych...

per Wycherley, P. R. (Paul Rennodden).

Grasses in Malayan plantations/ by P.R. Wycherley and Ahmad Azli bin Mohd. Yusof

per Wycherley, P. R. (Paul Rennodden).