Song, W.;                     Xu, J.;                     Gao, L.;                     Zhang, Q.;                     Tong, J.;                     Ren, L.    
        Preparation of Freeze-Dried Porous Chitosan Microspheres for the Removal of Hexavalent Chromium. Appl. Sci. 2021, 11, 4217.
    https://doi.org/10.3390/app11094217
    AMA Style
    
                                Song W,                                 Xu J,                                 Gao L,                                 Zhang Q,                                 Tong J,                                 Ren L.        
                Preparation of Freeze-Dried Porous Chitosan Microspheres for the Removal of Hexavalent Chromium. Applied Sciences. 2021; 11(9):4217.
        https://doi.org/10.3390/app11094217
    
    Chicago/Turabian Style
    
                                Song, Wei,                                 Jian Xu,                                 Lepeng Gao,                                 Qingzhu Zhang,                                 Jin Tong,                                 and Lili Ren.        
                2021. "Preparation of Freeze-Dried Porous Chitosan Microspheres for the Removal of Hexavalent Chromium" Applied Sciences 11, no. 9: 4217.
        https://doi.org/10.3390/app11094217
    
    APA Style
    
                                Song, W.,                                 Xu, J.,                                 Gao, L.,                                 Zhang, Q.,                                 Tong, J.,                                 & Ren, L.        
        
        (2021). Preparation of Freeze-Dried Porous Chitosan Microspheres for the Removal of Hexavalent Chromium. Applied Sciences, 11(9), 4217.
        https://doi.org/10.3390/app11094217