TY - BOOK AU - Allen, H. S. AU - Moor, H. AU - Jayaratne, Osmond TI - Prayogika bhuthika vidya patagranthaya U1 - 530 PY - 1965/// CY - Colombo PB - Dep. of Official Languages KW - Physics N1 - Text un sinhala - Tr. of author's " A Text-book of practical physics" ER -