APA 6th Edition Ulmer, H.-. (1979). Perceived exertion as part of a behavioural feedback system for arrangement of strain during physical exercise. Arhiv za higijenu rada i toksikologiju, 30 (Supplement 3), 1143-1148. Preuzeto s https://hrcak.srce.hr/204832
MLA 8th Edition Ulmer, H.-V.. "Perceived exertion as part of a behavioural feedback system for arrangement of strain during physical exercise." Arhiv za higijenu rada i toksikologiju, vol. 30, br. Supplement 3, 1979, str. 1143-1148. https://hrcak.srce.hr/204832. Citirano 25.02.2021.
Chicago 17th Edition Ulmer, H.-V.. "Perceived exertion as part of a behavioural feedback system for arrangement of strain during physical exercise." Arhiv za higijenu rada i toksikologiju 30, br. Supplement 3 (1979): 1143-1148. https://hrcak.srce.hr/204832
Harvard Ulmer, H.-. (1979). 'Perceived exertion as part of a behavioural feedback system for arrangement of strain during physical exercise', Arhiv za higijenu rada i toksikologiju, 30(Supplement 3), str. 1143-1148. Preuzeto s: https://hrcak.srce.hr/204832 (Datum pristupa: 25.02.2021.)
Vancouver Ulmer H-. Perceived exertion as part of a behavioural feedback system for arrangement of strain during physical exercise. Arh Hig Rada Toksikol. [Internet]. 1979 [pristupljeno 25.02.2021.];30(Supplement 3):1143-1148. Dostupno na: https://hrcak.srce.hr/204832
IEEE H.-. Ulmer, "Perceived exertion as part of a behavioural feedback system for arrangement of strain during physical exercise", Arhiv za higijenu rada i toksikologiju, vol.30, br. Supplement 3, str. 1143-1148, 1979. [Online]. Dostupno na: https://hrcak.srce.hr/204832. [Citirano: 25.02.2021.]