Gaya APA
Roth, E, T, G, J, D. (1991).
Common problem in pediatric urology .
St. Louis:
St. Louis : Mosby Year Book.
Gaya MLA
Roth, Edmond, T., Gonzales, Jr.,, David.
"Common problem in pediatric urology".
St. Louis:
St. Louis : Mosby Year Book,
1991.
Text.