KRAMER, P. J. Plant and soil water relationships. McGraw-Hill Book.
Lua i Stíl Chicago (17ú heag.)KRAMER, PAUL J. Plant and Soil Water Relationships. McGraw-Hill Book.
Lua MLA (8ú heag.)KRAMER, PAUL J. Plant and Soil Water Relationships. McGraw-Hill Book.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.