✓

@book{book_92722331,
    title = {Models and Ultraproducts: An Introduction},
    author = {Bell, J. L. and Slomson, A. B.},
    publisher = {North-Holland},
    isbn = {0720420547; 9780720420548; 0444106154; 9780444106155},
    year = {1969},
    edition = {3rd printing},
    url = {libgen.li/file.php?md5=3abf7566fdd89997e423a7da10901af3},
    date-added = {2025-7-8 6:49:24 +0100}
}

@book{book_92722331, title = {Models and Ultraproducts: An Introduction}, author = {Bell, J. L. and Slomson, A. B.}, publisher = {North-Holland}, isbn = {0720420547; 9780720420548; 0444106154; 9780444106155}, year = {1969}, edition = {3rd printing}, url = {libgen.li/file.php?md5=3abf7566fdd89997e423a7da10901af3}, date-added = {2025-7-8 6:49:24 +0100} }