APA stil citiranja

Ostojić, J. (2017). Chronic obstructive pulmonary disease and heart failure: closer than close: Chronic obstructive pulmonary disease and heart failure: closer than close. Acta clinica Croatica (Tisak), p. 6.

Chicago stil citiranja

Ostojić, Jelena. "Chronic obstructive pulmonary disease and heart failure: closer than close: Chronic obstructive pulmonary disease and heart failure: closer than close." 2017: 6.

MLA stil citiranja

Ostojić, Jelena. "Chronic obstructive pulmonary disease and heart failure: closer than close: Chronic obstructive pulmonary disease and heart failure: closer than close." 2017: 6.