Gaya APA

Johnson, H, J., Ralph, I, B. (1970). Creative walking for physical fitness . New York: New York: Grosset & Dunlap; 1970.

Gaya MLA

Johnson, Harry, J.., Ralph, I., Bass,. "Creative walking for physical fitness". New York: New York: Grosset & Dunlap; 1970, 1970. Text.