Gaya APA
Dr. N.W. Walker, D.Sc.. (1949).
Become Younger (Pertama).
U.S.A:
Norwalk Press.
Gaya Chicago
Dr. N.W. Walker, D.Sc..
Become Younger.
Pertama
U.S.A:
Norwalk Press,
1949.
Text.
Gaya MLA
Dr. N.W. Walker, D.Sc..
Become Younger.
Pertama
U.S.A:
Norwalk Press,
1949.
Text.
Gaya Turabian
Dr. N.W. Walker, D.Sc..
Become Younger.
Pertama
U.S.A:
Norwalk Press,
1949.
Print.