00556nam a22002057a 4500 20260624154807.0 978-93-528-3722-9 eng 23rd. 530.15 DAS Dass, H. K. Mathematical physics H. K. Dass, Rajnish Verma and Rama Verma 8th rev. ed. New Delhi S. Chand Publishing 2026 xxiv,1416p.; 23cm. Mathematical physics Verma, Rajnish Verma, Rama www.schandpublishing.com BK 184849 184848 2026-06-24 15:31:33 0 530.15 DAS 530159 ,7 2026-06-24 BK 0 0 0 ITEP 0 NEHU NEHU ITEP 2026-06-24 2026-06-24 15:31:33 0 530.15 DAS 530160 ,7;1 2026-06-24 BK 0 0 0 ITEP 0 NEHU NEHU ITEP 2026-06-24