(1987). Gray iron foundry industry particulate emissions: Source category report / John Jeffrey, John Fitzgerald, and Paul Wolf.
Chicago-viite (17. p.)Gray Iron Foundry Industry Particulate Emissions: Source Category Report / John Jeffrey, John Fitzgerald, and Paul Wolf. 1987.
MLA-viite (9. p.)Gray Iron Foundry Industry Particulate Emissions: Source Category Report / John Jeffrey, John Fitzgerald, and Paul Wolf. 1987.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.