Gaya APA
Esler, William K., Esler, Mary K.. (1996).
Teaching Elementary Science (Seventh Edition) .
USA:
Wadsworth Publishing.
Gaya Chicago
Esler, William K., Esler, Mary K..
Teaching Elementary Science (Seventh Edition).
USA:
Wadsworth Publishing,
1996.
Text.
Gaya MLA
Esler, William K., Esler, Mary K..
Teaching Elementary Science (Seventh Edition).
USA:
Wadsworth Publishing,
1996.
Text.
Gaya Turabian
Esler, William K., Esler, Mary K..
Teaching Elementary Science (Seventh Edition).
USA:
Wadsworth Publishing,
1996.
Print.