Gaya APA
Epidemic. (1961).
Garden city, New York:
Doubleday & Company, Inc.
Gaya Chicago
Epidemic.
.
Garden city, New York:
Doubleday & Company, Inc,
1961.
.
Gaya MLA
Epidemic.
.
Garden city, New York:
Doubleday & Company, Inc,
1961.
.
Gaya Turabian
Epidemic.
Garden city, New York:
Doubleday & Company, Inc,
1961.
.