These are the official results of the men's 4 x 400 metres relay event at the 1968 Summer Olympics in Mexico City, Mexico.
References
Athletics at the 1968 Summer Olympics – Men's 4 × 400 metres relay Wikipedia(Text) CC BY-SA
These are the official results of the men's 4 x 400 metres relay event at the 1968 Summer Olympics in Mexico City, Mexico.