TY - BOOK AU - Marok, Ajit Singh TI - Role of aluminium and organic matter in the acidity development in the soils of Kangra and Kullu districts of the erstwhile Punjab state U1 - T 631.41 M33R PY - 1967/// CY - Ludhiana PB - PAU KW - SOIL CHEMISTRY KW - SOILS - PUNJAB ER -