Hughes, John A.
The philosophy of social research - 3rd ed. - London : Longman, 1997 - 221
SOCIAL SCIENCES--RESEARCH--METHODOLOGY
H61 / H833P 1997
The philosophy of social research - 3rd ed. - London : Longman, 1997 - 221
SOCIAL SCIENCES--RESEARCH--METHODOLOGY
H61 / H833P 1997