APA সাইটেশন

Nand, B., & Sharma, B. D. (1972). Spherical harmonics and partial differential equations (5th ed.). Kedar Nath Ram Nath publishers.

শিকাগো স্টাইলে সাইটেশন

Nand, Brahma, এবং Bhu Dev Sharma. Spherical Harmonics and Partial Differential Equations. 5th ed. Meerut: Kedar Nath Ram Nath publishers, 1972.

এমএলএ সাইটেশন

Nand, Brahma, এবং Bhu Dev Sharma. Spherical Harmonics and Partial Differential Equations. 5th ed. Kedar Nath Ram Nath publishers, 1972.