Sivapalan, P.
Productivity of tea in Sri Lanka in relation to the status of implementation of sound agricultural practices and scientific advice generated through research efforts - [s.l.] [s.n.] [19--?] - 25p. 30 cm
Sri Lanka
Plantation
Agricultural economics
SL 338.43 / SIV
Productivity of tea in Sri Lanka in relation to the status of implementation of sound agricultural practices and scientific advice generated through research efforts - [s.l.] [s.n.] [19--?] - 25p. 30 cm
Sri Lanka
Plantation
Agricultural economics
SL 338.43 / SIV