APA-ийн эшлэл(7 дахь хэвлэлт)

Petryshyn, W. V. (1993). Approximation solvability of nonlinear funcional and diferential equations. Marcel Dekker.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Petryshyn, Wolodymyr V. Approximation Solvability of Nonlinear Funcional and Diferential Equations. Nueva York: Marcel Dekker, 1993.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Petryshyn, Wolodymyr V. Approximation Solvability of Nonlinear Funcional and Diferential Equations. Marcel Dekker, 1993.