Gaya APA
Vaughan, Daniel.. (1989).
General ophthalmology (12th. Ed.).
Englewood Cliffs:
Prentice Hall.
Gaya Chicago
Vaughan, Daniel..
General ophthalmology.
12th. Ed.
Englewood Cliffs:
Prentice Hall,
1989.
Text.
Gaya MLA
Vaughan, Daniel..
General ophthalmology.
12th. Ed.
Englewood Cliffs:
Prentice Hall,
1989.
Text.
Gaya Turabian
Vaughan, Daniel..
General ophthalmology.
12th. Ed.
Englewood Cliffs:
Prentice Hall,
1989.
Print.