Gaya APA
Johnson, Eugene M.. (1986).
Profitable service marketing .
Homewood:
Dow Jones.
Gaya Chicago
Johnson, Eugene M..
Profitable service marketing.
Homewood:
Dow Jones,
1986.
Text.
Gaya MLA
Johnson, Eugene M..
Profitable service marketing.
Homewood:
Dow Jones,
1986.
Text.
Gaya Turabian
Johnson, Eugene M..
Profitable service marketing.
Homewood:
Dow Jones,
1986.
Print.