APA način citiranja (7. izdanje)

Frey, J., & Howard, B. (1987). AN ACCURATE CALCULATION OF THE GROUND-STATE ENERGY OF THE HELIUM ATOM AND THE HYDROGEN NEGATIVE-ION USING HYPERSPHERICAL COORDINATES.

Čikaški stil citiranja (17. izdanje)

Frey, J., i B. Howard. AN ACCURATE CALCULATION OF THE GROUND-STATE ENERGY OF THE HELIUM ATOM AND THE HYDROGEN NEGATIVE-ION USING HYPERSPHERICAL COORDINATES. 1987.

MLA način citiranja (9. izdanje)

Frey, J., i B. Howard. AN ACCURATE CALCULATION OF THE GROUND-STATE ENERGY OF THE HELIUM ATOM AND THE HYDROGEN NEGATIVE-ION USING HYPERSPHERICAL COORDINATES. 1987.