Hard to find book in number theory– Proceedings of conference in Budapest 1987

I’m looking for a copy of this book, which is hard to find:

Number theory. Vol. I.
Elementary and analytic. Papers from the conference held in Budapest, July 20–25, 1987. Edited by K. Győry and G. Halász. Colloquia Mathematica Societatis János Bolyai, 51. North-Holland Publishing Co., Amsterdam, 1990. 573 pp. ISBN: 0-444-70346-2

Anyone know where/how to get access?