Gaya APA
Keller, James. (1959).
Three Minutes A Day .
New York:
Permabooks.
Gaya Chicago
Keller, James.
Three Minutes A Day.
New York:
Permabooks,
1959.
Text.
Gaya MLA
Keller, James.
Three Minutes A Day.
New York:
Permabooks,
1959.
Text.
Gaya Turabian
Keller, James.
Three Minutes A Day.
New York:
Permabooks,
1959.
Print.