APA Edition Citation

Helmut Kohnke. (2013). Soil Science Simplified (Fourth.). Scientific International.

Chicago Edition Citation

Helmut Kohnke. Soil Science Simplified. Fourth. NewDelhi: Scientific International, 2013.

MLA Edition Citation

Helmut Kohnke. Soil Science Simplified. Fourth. Scientific International, 2013.

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