Gaya APA
BALLENGER, H, C.
(1954).
Amanual of otology, rhinology and laryngology
.
Philadelphia:
Lea& Febiger.
Gaya MLA
BALLENGER, Howard, Charles.
"Amanual of otology, rhinology and laryngology".
Philadelphia:
Lea& Febiger,
1954.
Buku.