APA (7th ed.) Citation

Stakgold, I. Boundary value problems of mathematical physics Volume I. MacMillan.

Chicago Style (17th ed.) Citation

Stakgold, Ivan. Boundary Value Problems of Mathematical Physics Volume I. MacMillan.

MLA (8th ed.) Citation

Stakgold, Ivan. Boundary Value Problems of Mathematical Physics Volume I. MacMillan.

Warning: These citations may not always be 100% accurate.