APA-referens (7:e uppl.)

RAO, S. (2012). INTRODUCTION TO PARTIAL DIFFERENTIATION EQUATION (3RD.). PHI.

Chicago-referens (17:e uppl.)

RAO, S. INTRODUCTION TO PARTIAL DIFFERENTIATION EQUATION. 3RD. N DELHI: PHI, 2012.

MLA-referens (9:e uppl.)

RAO, S. INTRODUCTION TO PARTIAL DIFFERENTIATION EQUATION. 3RD. PHI, 2012.