Gaya APA
How to solve it : a new aspect of mathematical method. (1973).
New Jersey:
Princeton University Press.
Gaya Chicago
How to solve it : a new aspect of mathematical method.
.
New Jersey:
Princeton University Press,
1973.
Buku.
Gaya MLA
How to solve it : a new aspect of mathematical method.
.
New Jersey:
Princeton University Press,
1973.
Buku.
Gaya Turabian
How to solve it : a new aspect of mathematical method.
New Jersey:
Princeton University Press,
1973.
Buku.