Gaya APA
Jovanovich, P.
(1980).
World English 1 : the HBJ English program
.
London:
Harcourt Brace Jovanovich.
Gaya MLA
Jovanovich, Peter.
"World English 1 : the HBJ English program".
London:
Harcourt Brace Jovanovich,
1980.
Text.