APA
                    Allen L. V. P. N. G. &. A. H. C., . (2011). Ansel's Pharmaceutical dosage forms and drug delivery systems. Wolters kluwer, New Delhi: .
                
                    Chicago
                    Allen Loyd V Popovich Nicholas G & Ansel Howard C, . 2011. Ansel's Pharmaceutical dosage forms and drug delivery systems. Wolters kluwer, New Delhi: .
                
                    Harvard
                    Allen L. V. P. N. G. &. A. H. C., . (2011). Ansel's Pharmaceutical dosage forms and drug delivery systems. Wolters kluwer, New Delhi: .
                
                    MLA
                    Allen Loyd V Popovich Nicholas G & Ansel Howard C, . Ansel's Pharmaceutical dosage forms and drug delivery systems. Wolters kluwer, New Delhi: . 2011.