Craig, I. A., Phensupha, K. N., & Ragland, J. L. (1987). Modified shallow wells: A farmer developed technology for Northeast Thailand. Northeast Rainfed Agricultural Development (NERAD) Project, Northeast Regional Office of Agriculture.
Citazione stile Chigago Style (17a edizione)Craig, Iain A., Khun Nattaporn Phensupha, e John L. Ragland. Modified Shallow Wells: A Farmer Developed Technology for Northeast Thailand. Khon Kaen, Thailand: Northeast Rainfed Agricultural Development (NERAD) Project, Northeast Regional Office of Agriculture, 1987.
Citatione MLA (9a ed.)Craig, Iain A., et al. Modified Shallow Wells: A Farmer Developed Technology for Northeast Thailand. Northeast Rainfed Agricultural Development (NERAD) Project, Northeast Regional Office of Agriculture, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.