Gaya APA
Teaching Mathematics in The Modern Elementary School. (1969).
London:
The macmillan company.
Gaya Chicago
Teaching Mathematics in The Modern Elementary School.
cet. 1.
London:
The macmillan company,
1969.
.
Gaya MLA
Teaching Mathematics in The Modern Elementary School.
cet. 1.
London:
The macmillan company,
1969.
.
Gaya Turabian
Teaching Mathematics in The Modern Elementary School.
London:
The macmillan company,
1969.
.