Lua APA (7ú heag.)

KOHNKE, H. (1979). Soil physics. TATA McGraw-Hill Publishing.

Lua i Stíl Chicago (17ú heag.)

KOHNKE, Helmut. Soil Physics. New Delhi: TATA McGraw-Hill Publishing, 1979.

Lua MLA (9ú heag.)

KOHNKE, Helmut. Soil Physics. TATA McGraw-Hill Publishing, 1979.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.