Gaya APA
Chernick, V., Kending, E, L. (1990).
Keding's disorders of the respiratory tract in children .
Philadelphia:
W.B. Saunders.
Gaya MLA
Chernick, Victor., Kending, Edwin, L..
"Keding's disorders of the respiratory tract in children".
Philadelphia:
W.B. Saunders,
1990.
Text.