APA-viite (7. p.)

Ramirez, D. M. (1988). Indigenous soil conservation strategies in the Philippine upland farms. Environment and Policy Institute, Eastwest Center.

Chicago-viite (17. p.)

Ramirez, Domingo M. Indigenous Soil Conservation Strategies in the Philippine Upland Farms. Honolulu, Hawaii: Environment and Policy Institute, Eastwest Center, 1988.

MLA-viite (9. p.)

Ramirez, Domingo M. Indigenous Soil Conservation Strategies in the Philippine Upland Farms. Environment and Policy Institute, Eastwest Center, 1988.