Gaya APA
STERLING, Philip. (1955).
Polio Pioneers .
New York:
Doubleday and Company.
Gaya Chicago
STERLING, Philip.
Polio Pioneers.
New York:
Doubleday and Company,
1955.
Teks.
Gaya MLA
STERLING, Philip.
Polio Pioneers.
New York:
Doubleday and Company,
1955.
Teks.
Gaya Turabian
STERLING, Philip.
Polio Pioneers.
New York:
Doubleday and Company,
1955.
Teks.