Gaya APA

Mikhlin, S., Harry, I, H. (NULL). Linear equations of mathematical physics . New: New York: Holt, Rinehart and Winston; 1967.

Gaya MLA

Mikhlin, S.G., Harry, I., Hochstadt,. "Linear equations of mathematical physics". New: New York: Holt, Rinehart and Winston; 1967, NULL. Text.