J. FrederickJ.F.BridgeJ. FrederickJ.F., Westminster Abbey Boys, „The Musical Times and Singing Class Circular”, 29 (550), 1888, s. 748, DOI: 10.2307/3360181, ISSN0958-8434, JSTOR: 3360181 [dostęp 2022-06-19].
PeterP.MilwardPeterP., God's Traitors: Terror and Faith in Elizabethan England. By Jessie Childs. Pp. xx, 443. London, The Bodley Head, 2014, £25.00., „The Heythrop Journal”, 58 (3), 2017, s. 484–486, DOI: 10.1111/heyj.12529, ISSN0018-1196 [dostęp 2022-06-19].
jstor.org
J. FrederickJ.F.BridgeJ. FrederickJ.F., Westminster Abbey Boys, „The Musical Times and Singing Class Circular”, 29 (550), 1888, s. 748, DOI: 10.2307/3360181, ISSN0958-8434, JSTOR: 3360181 [dostęp 2022-06-19].
worldcat.org
J. FrederickJ.F.BridgeJ. FrederickJ.F., Westminster Abbey Boys, „The Musical Times and Singing Class Circular”, 29 (550), 1888, s. 748, DOI: 10.2307/3360181, ISSN0958-8434, JSTOR: 3360181 [dostęp 2022-06-19].
PeterP.MilwardPeterP., God's Traitors: Terror and Faith in Elizabethan England. By Jessie Childs. Pp. xx, 443. London, The Bodley Head, 2014, £25.00., „The Heythrop Journal”, 58 (3), 2017, s. 484–486, DOI: 10.1111/heyj.12529, ISSN0018-1196 [dostęp 2022-06-19].