Zabreyko, P. e., Koshelev, A. e., Mikhlin, S. e., & Rakovshchik. L.S. ed. (1975). Integral equations: A reference text. Noordhoff International publishing.

Zabreyko, P.P. ed, A.I. ed Koshelev, S.G. ed Mikhlin, and Rakovshchik. L.S. ed. Integral Equations: A Reference Text. Leyden: Noordhoff International publishing, 1975.

Zabreyko, P.P. ed, et al. Integral Equations: A Reference Text. Noordhoff International publishing, 1975.