APA Style
Samuelson,P.A, Parks, W.R.. (1970).
Economics (8th Edition) .
New York:
McGraw- Hill Book Company.
Chicago Style
Samuelson,P.A, Parks, W.R..
Economics (8th Edition).
New York:
McGraw- Hill Book Company,
1970.
.
MLA Style
Samuelson,P.A, Parks, W.R..
Economics (8th Edition).
New York:
McGraw- Hill Book Company,
1970.
.
Turabian Style
Samuelson,P.A, Parks, W.R..
Economics (8th Edition).
New York:
McGraw- Hill Book Company,
1970.
.