@book { KeywordsintheSocialStudies,
    title = "Keywords in the Social Studies",
    author = "Daniel G. {Krutka} and Annie McMahon {Whitlock} and Mark {Helmsing}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/b13499",
    url = "https://www.peterlang.com/document/1110508"
}