| Subject | English | French |
| energ.ind. | non-renewable primary source of energy | énergie primaire épuisable |
| energ.ind. | primary energy source | source d'énergie primaire |
| el. | primary grade source of release | source de dégagement de premier degré |
| earth.sc. | primary light source | source primaire de lumière |
| anal.chem. | primary source | source de lumière (in atomic absorption and atomic fluorescence spectroscopy) |
| fin. | primary source of revenue | source primaire de recettes |
| work.fl. | primary sources | documents primaires |
| work.fl. | primary sources | littérature primaire |
| work.fl. | primary sources | publications primaires |
| gen. | primary sources | matières premières énergétiques |
| gen. | primary sources | document original (Published and unpublished records without secondary interpretation or commentary) |
| gen. | primary sources | sources primaires (Published and unpublished records without secondary interpretation or commentary) |