* {{Harvard reference|Given=Howard Chandler|Surname=Christy|coauthor=Ethel Franklin Betts|Year=1982|Title=The complete works of James Whitcomb Riley|Publisher=|Place=}}
*{{Harvard referenceCitation|Givengiven=JosephHoward Chandler|Surnamesurname=DenverChristy|coauthor=Ethel Franklin Betts|Yearyear=19651982|Titletitle=CushingThe ofcomplete Boston:works of AJames CandidWhitcomb PortraitRiley|Publisher=|Place=}}
*{{Citation|given=Joseph|surname=Denver|coauthor=[[Ethel Franklin Betts]]|year=1965|title=Cushing of Boston: A Candid Portrait|Publisher=|Place=}}
*{{Harvard referenceCitation|Givengiven=Richard H.|Surnamesurname=Immerman|Yearyear=1982|Titletitle=The [[CIA]] in Guatemala: The Foreign Policy of Intervention|Publisherpublisher=[[University of Texas at Austin|University of Texas]] Press]]|Placeplace=[[Austin, Texas]]}}
