APA Citation

Frear, D. E. H. 1., & Frear, D. E. H. 1. Principles of agricultural chemistry.

Chicago Style Citation

Frear, Donald Elisha Harding 1906-, and Donald Elisha Harding 1906- Frear. Principles of Agricultural Chemistry.

MLA Citation

Frear, Donald Elisha Harding 1906-, and Donald Elisha Harding 1906- Frear. Principles of Agricultural Chemistry.

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