Blalock, Ann Bonar
Introduction to social research - 2nd ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1982 - 153
SOCIAL SCIENCES--RESEARCH
H62 / B524I 1982
Introduction to social research - 2nd ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1982 - 153
SOCIAL SCIENCES--RESEARCH
H62 / B524I 1982