Though the links above and below go to the Chicago quick guide - the full print Chicago Manual of Style is available for more complicated questions. These large print volumes can be found both at the Library Services Desk and in the Stacks.
For Chicago Style - Notes and Bibliography - CrossRef find the correct form of the DOI for journal articles (if the journal has a DOI).
Journals focusing primarily on Environmental History
"Secondary sources are commentaries and writings on the past from a later date" -
Lipartito, Kenneth. "Historical Sources and Data." Organizations in Time: History, Theory, Methods (2014): 284-304.
Agricultural History is the journal of record in its field. As such, it publishes articles that explore agriculture and rural life over time, in all geographies and among all people. Articles in Agricultural History use a wide range of methodologies to illuminate the history of farming, food, agricultural science and technology, the environment, rural life, and beyond. The journal includes innovative research, timely book and film reviews, and special features that unite diverse historical approaches under agriculture-related themes.
Environment and History is an interdisciplinary journal which aims to bring scholars in the humanities and biological sciences closer together, with the deliberate intention of constructing long and well-founded perspectives on present day environmental problems.
Environmental History is the world's leading scholarly journal in environmental history. EH brings together scholars, scientists, and practitioners from a wide array of disciplines to explore changing relationships between humans and the environment over time. The University of Chicago Press publishes EH on a quarterly basis, on behalf of the American Society for Environmental History and Forest History Society.
The Primary Sources - Advanced Resources page provides access to many more primary source options based on the time period, location, and social group of interest.