Gaya APA
Braun, J, R.
(1984).
Study guide basic concepts of chemistry
(
3rd ed.)
.
Dallas:
Houghton Mifflin Company.
Gaya MLA
Braun, James, R..
"Study guide basic concepts of chemistry".
3rd ed.
Dallas:
Houghton Mifflin Company,
1984.
Text.