for Sec. and Sr. Sec. students Garg, C. L. creator Garg, Amit illusrtated by Kuriyan, Priya i text New Delhi V&S Publishers 2012 14th ed. monographic 136p.: 24cm(pbk) illu 1CD ROM by C.L. Garg [and] Amit Garg 507.8 9789381384053 B-521830-859 ENG-137363 BBB/Ven dpl 20230711170514.0