Columbia subject headings:
Dairying--Economic aspects--Statistics--Periodicals.
Milk trade--Statistics--Periodicals.
Organisation for Economic Co-operation and Development--Periodicals.
Harvard subject headings:
Dairying--Economic aspects--Statistics--Periodicals.
Milk trade--Statistics--Periodicals.
Organisation for Economic Co-operation and Development--Periodicals.
Princeton subject headings:
Dairying--Economic aspects--Statistics--Periodicals.
Milk trade--Statistics--Periodicals.
Organisation for Economic Co-operation and Development--Periodicals.