Cita APA (7a ed.)

Appleton, P. L., & Clark, D. (1990). Billion ($)$$ high: The drug invasion of Canada (1. publ.). McGraw-Hill Ryerson.

Cita Chicago Style (17a ed.)

Appleton, P. L., y Doug Clark. Billion ($)$$ High: The Drug Invasion of Canada. 1. publ. Montreal [u.a.]: McGraw-Hill Ryerson, 1990.

Cita MLA (9a ed.)

Appleton, P. L., y Doug Clark. Billion ($)$$ High: The Drug Invasion of Canada. 1. publ. McGraw-Hill Ryerson, 1990.