Gaya APA
Sill, Webster H.. (1978).
The Plant protection discipline : problems and possible developmental startegies / Webster H. Sill .
Montelair:
Allanheld Osmun.
Gaya Chicago
Sill, Webster H..
The Plant protection discipline : problems and possible developmental startegies / Webster H. Sill.
Montelair:
Allanheld Osmun,
1978.
Text.
Gaya MLA
Sill, Webster H..
The Plant protection discipline : problems and possible developmental startegies / Webster H. Sill.
Montelair:
Allanheld Osmun,
1978.
Text.
Gaya Turabian
Sill, Webster H..
The Plant protection discipline : problems and possible developmental startegies / Webster H. Sill.
Montelair:
Allanheld Osmun,
1978.
Print.