Gaya APA
Teaching Mathematics in The Elementary School. (1970).
New York:
The free press.
Gaya Chicago
Teaching Mathematics in The Elementary School.
.
New York:
The free press,
1970.
.
Gaya MLA
Teaching Mathematics in The Elementary School.
.
New York:
The free press,
1970.
.
Gaya Turabian
Teaching Mathematics in The Elementary School.
New York:
The free press,
1970.
.