Walton, L. R. (1988). How you can live six extra years. Woodbridge Press.
Chicagoスタイル(17版)引用形式Walton, Lewis R. How You Can Live Six Extra Years. Woodbridge Press, 1988.
MLA(9版)引用形式Walton, Lewis R. How You Can Live Six Extra Years. Woodbridge Press, 1988.
警告: この引用は必ずしも正確ではありません.