Cita APA (7a ed.)

Gasser, W. R. (1981). Survey of irrigation in eight Asian nations India, Pakistan, Indonesia, Thailand, Bangladesh, South Korea, Philippines and SRI Lanka. US Department of agriculture.

Cita Chicago Style (17a ed.)

Gasser, William R. Survey of Irrigation in Eight Asian Nations India, Pakistan, Indonesia, Thailand, Bangladesh, South Korea, Philippines and SRI Lanka. Washington: US Department of agriculture, 1981.

Cita MLA (8a ed.)

Gasser, William R. Survey of Irrigation in Eight Asian Nations India, Pakistan, Indonesia, Thailand, Bangladesh, South Korea, Philippines and SRI Lanka. US Department of agriculture, 1981.