@Book{OL5603539M,
    title: {Real analysis},
    author: {H. L. Royden and Patrick Fitzpatrick and Halsey Royden and Royden and H.L. Royden and ROYDEN \& FITZPATRICK},
    publisher: {Macmillan},
    year: {1968},
    place: {New York},
}

@Book{OL9775901M,
    title: {Practical Statistics by Example Using Microsoft Excel},
    author: {Terry Sincich and Davidm Levine and David Stephan},
    publisher: {Prentice Hall College Div},
    year: {1999},
}

@Book{OL3503640M,
    title: {Dynamic economic systems},
    author: {John Markus Blatt},
    publisher: {M.E. Sharpe},
    year: {1983},
    place: {Armonk, N.Y},
}

@Book{OL5308669M,
    title: {Introductory mathematical analysis: for students of business and economics},
    author: {Ernest F. Haeussler and Richard S. Paul and Richard Paul and Richard P. Paul},
    publisher: {Reston Publishing Co.},
    year: {1973},
    place: {Reston, Virginia},
}

@Book{OL1538116M,
    title: {The theory of interest},
    author: {Stephen G. Kellison},
    publisher: {Irwin},
    year: {1991},
    place: {Homewood, IL},
}

@Book{OL17507695M,
    title: {Macro-economic theory},
    author: {R. G. D. Allen},
    publisher: {Macmillan},
    year: {1967},
    place: {London},
}

@Book{OL4577631M,
    title: {Real analysis},
    author: {Norman B. Haaser},
    publisher: {Van Nostrand Reinhold Co.},
    year: {1971},
    place: {New York},
}

@Book{OL26558766M,
    title: {Mathematical analysis for economists},
    author: {R. G. D. Allen},
    publisher: {Macmillan},
    year: {1962},
    place: {London},
}

@Author{OL1921565A,
    name: {R. G. D. Allen},
}