Heffernan, J.;                     McDonald, E.;                     Hughes, E.;                     Gray, R.    
        Tri-Response Police, Ambulance, Mental Health Crisis Models in Reducing Involuntary Detentions of Mentally Ill People: Protocol for a Systematic Review. Int. J. Environ. Res. Public Health 2021, 18, 8230.
    https://doi.org/10.3390/ijerph18158230
    AMA Style
    
                                Heffernan J,                                 McDonald E,                                 Hughes E,                                 Gray R.        
                Tri-Response Police, Ambulance, Mental Health Crisis Models in Reducing Involuntary Detentions of Mentally Ill People: Protocol for a Systematic Review. International Journal of Environmental Research and Public Health. 2021; 18(15):8230.
        https://doi.org/10.3390/ijerph18158230
    
    Chicago/Turabian Style
    
                                Heffernan, Julia,                                 Ewan McDonald,                                 Elizabeth Hughes,                                 and Richard Gray.        
                2021. "Tri-Response Police, Ambulance, Mental Health Crisis Models in Reducing Involuntary Detentions of Mentally Ill People: Protocol for a Systematic Review" International Journal of Environmental Research and Public Health 18, no. 15: 8230.
        https://doi.org/10.3390/ijerph18158230
    
    APA Style
    
                                Heffernan, J.,                                 McDonald, E.,                                 Hughes, E.,                                 & Gray, R.        
        
        (2021). Tri-Response Police, Ambulance, Mental Health Crisis Models in Reducing Involuntary Detentions of Mentally Ill People: Protocol for a Systematic Review. International Journal of Environmental Research and Public Health, 18(15), 8230.
        https://doi.org/10.3390/ijerph18158230