APA Style
Amarasinghe, U. A., Smakhtin, V., Sharma, B. R., Eriyagama, N., Meacham,M.L and et al.. (1997).
Timber Sale Planning and Analysis System: A Guide to the TSPAS Express Program (USDA) .
Ogden, Utah:
USDA Forest Service.
Chicago Style
Amarasinghe, U. A., Smakhtin, V., Sharma, B. R., Eriyagama, N., Meacham,M.L and et al..
Timber Sale Planning and Analysis System: A Guide to the TSPAS Express Program (USDA).
Ogden, Utah:
USDA Forest Service,
1997.
.
MLA Style
Amarasinghe, U. A., Smakhtin, V., Sharma, B. R., Eriyagama, N., Meacham,M.L and et al..
Timber Sale Planning and Analysis System: A Guide to the TSPAS Express Program (USDA).
Ogden, Utah:
USDA Forest Service,
1997.
.
Turabian Style
Amarasinghe, U. A., Smakhtin, V., Sharma, B. R., Eriyagama, N., Meacham,M.L and et al..
Timber Sale Planning and Analysis System: A Guide to the TSPAS Express Program (USDA).
Ogden, Utah:
USDA Forest Service,
1997.
.