Gaya APA

al., E. et al (1994). Communication Skills In Pharmacy Practice ( A Practical Guide For Students And Practicioners ) (Ed. 3). USA : Williams and Wilkins.

Gaya MLA

al., Et. et al. "Communication Skills In Pharmacy Practice ( A Practical Guide For Students And Practicioners )". Ed. 3 USA : Williams and Wilkins, 1994. Text.