University of Guyana Library Search for 'pb:Ess Ess Pub., '

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New Delhi : Ess Ess Pub., 2005 . [ix], 298 p. : 817000439X

New Delhi , India : Ess Ess Pub., 2003 . 227 p. 817000361x

New Delhi, Inda : Ess Ess Pub., 2002 . 540 p. : charts, diagrs. 8170003458

New Delhi : Ess Ess Pub., 2005 . [xv], 357 p. 8170004225

New Delhi, India : Ess Ess Pub., 2003 . Charts, diagrs.

New Delhi : Ess Ess Pub., 1987 . viii, 184 p. ; 8170000289