HARD LABOR by THREE DOG NIGHT has sold 510,080 copies in Japan and United States.
HARD LABOR certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
10,080 | Oricon charts |
Japan Sales: 10,080
Certification / note: Oricon charts
Certification Date / sales as of:
|
|
 United States |
500,000 | 1x Gold | 17 April, 1974 |
United States Sales: 500,000
Certification / note: 1x Gold
Certification Date / sales as of: 17 April, 1974
|
| Total sales | 510,080 | (in 2 countries) |
Total
Sales: 510,080
(in 2 countries)
|