APA Citation

Nyvall, R. (1999). Field crop diseases (3. ed.). Iowa (EUA):.

Chicago Style Citation

Nyvall, R.F. Field Crop Diseases. 3. ed. Iowa (EUA):, 1999.

MLA Citation

Nyvall, R.F. Field Crop Diseases. 3. ed. Iowa (EUA):, 1999.

Warning: These citations may not always be 100% accurate.