Gaya APA
Lipton, R, B., Bigal, M, E. (2006).
Migraine and Other Headache Disorders .
New York:
Informa Healthcare.
Gaya MLA
Lipton, Richard, B., Bigal, Marcelo, E.
"Migraine and Other Headache Disorders".
New York:
Informa Healthcare,
2006.
Printed Book.