Gaya APA
Rowland, G, T., Frost, , J, L. (1969).
The Elementary school : principles and problems .
Boston, MA:
Houghton Mifflin.
Gaya MLA
Rowland, G., Thomas., Frost, , Joe, L..
"The Elementary school : principles and problems".
Boston, MA:
Houghton Mifflin,
1969.
Text.