Gaya APA
Production and Productivity In The Service Industries. (1969).
Amerika:
National Bureau of Economic Research.
Gaya Chicago
Production and Productivity In The Service Industries.
.
Amerika:
National Bureau of Economic Research,
1969.
.
Gaya MLA
Production and Productivity In The Service Industries.
.
Amerika:
National Bureau of Economic Research,
1969.
.
Gaya Turabian
Production and Productivity In The Service Industries.
Amerika:
National Bureau of Economic Research,
1969.
.