APA Style

Gortemaker, Hans, Philip Wallage, Hayes, Rick. (). . : .

Chicago Style

Gortemaker, Hans, Philip Wallage, Hayes, Rick. . : , . .

MLA Style

Gortemaker, Hans, Philip Wallage, Hayes, Rick. . : , . .

Turabian Style

Gortemaker, Hans, Philip Wallage, Hayes, Rick. . : , . .