Where and how would you search to find the texts of these citations?
Putnam, R. D. (2000) Bowling Alone: The Collapse and Revival of American Community. Simon & Schuster, New York.
Thoits, Peggy A. 1995 "Stress, Coping, and Social Support Processes: Where Are We? What Next?" Journal of Health and Social Behavior, extra issue, pp. 53–79.
For a BOOK, search the Library Catalog for the title of the book, but exclude the initial article (the).
For a journal ARTICLE, search the Library Catalog for the title of the journal (not the article).
journal of health and human behavior
Check the Electronic Access links or the print volume holdings in the catalog records for the date of the journal that contains the article.