APA (7th ed.) Citation

T, S. (1999). Surgical treatment for morbid obesity. Professional nurse (London, England), 15(2), 109.

Chicago Style (17th ed.) Citation

T, Simmonds. "Surgical Treatment for Morbid Obesity." Professional Nurse (London, England) 15, no. 2 (1999): 109.

MLA (9th ed.) Citation

T, Simmonds. "Surgical Treatment for Morbid Obesity." Professional Nurse (London, England), vol. 15, no. 2, 1999, p. 109.