TY  - BOOK
AU  - Maas JGJA
AU  - Schmole JF
AU  - Yates HS
TI  - The Effect of soil differences and manuring on the formation of latex vessels
PY  - 1923///
PB  - Communications of the plantations research department of the United States rubber plantations Ing. Rubberseries No. 39
ER  -