Gaya APA
Boulding, Kenneth E.. (1985).
Human betterment .
Beverly Hills:
Sage.
Gaya Chicago
Boulding, Kenneth E..
Human betterment.
Beverly Hills:
Sage,
1985.
Text.
Gaya MLA
Boulding, Kenneth E..
Human betterment.
Beverly Hills:
Sage,
1985.
Text.
Gaya Turabian
Boulding, Kenneth E..
Human betterment.
Beverly Hills:
Sage,
1985.
Print.