Gaya APA
Elliot, W, J. et al (1996).
Soil and water management systems / Glenn O. Schwab, Delmar D. Fangmeier, William J. Elliot (Ed.ke-4).
New York:
John Wiley n Sons.
Gaya MLA
Elliot, William, J.. et al.
"Soil and water management systems / Glenn O. Schwab, Delmar D. Fangmeier, William J. Elliot".
Ed.ke-4
New York:
John Wiley n Sons,
1996.
Textbook.