Gaya APA
Freeman,. (1958).
Helping Children Understand Science .
New York:
Holt,Rinehart and Winston.
Gaya Chicago
Freeman,.
Helping Children Understand Science.
New York:
Holt,Rinehart and Winston,
1958.
Text.
Gaya MLA
Freeman,.
Helping Children Understand Science.
New York:
Holt,Rinehart and Winston,
1958.
Text.
Gaya Turabian
Freeman,.
Helping Children Understand Science.
New York:
Holt,Rinehart and Winston,
1958.
Print.