APA-ийн эшлэл(7 дахь хэвлэлт)

Coddington, E. A., & Snoo, h. S. V. (1981). Regular boundary value problems associated with pairs of ordinary differential expressions. Springer.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Coddington, Earl A., ба hendrik S. V. Snoo. Regular Boundary Value Problems Associated with Pairs of Ordinary Differential Expressions. Berlín: Springer, 1981.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Coddington, Earl A., ба hendrik S. V. Snoo. Regular Boundary Value Problems Associated with Pairs of Ordinary Differential Expressions. Springer, 1981.