Penggayaan APA
Butts, David P.. (1973).
Teaching science in the elementary school (cet. 1).
New York:
The Free Pers.
Chicago Style
Butts, David P..
Teaching science in the elementary school.
cet. 1
New York:
The Free Pers,
1973.
Buku.
MLA Style
Butts, David P..
Teaching science in the elementary school.
cet. 1
New York:
The Free Pers,
1973.
Buku.
Turabian Style
Butts, David P..
Teaching science in the elementary school.
cet. 1
New York:
The Free Pers,
1973.
Buku.