APA (7th ed.) Citation

Heyde, G. C. (1981). Modapts plus. Heyde Dynamics.

Chicago Style (17th ed.) Citation

Heyde, G. C. Modapts Plus. Sydney: Heyde Dynamics, 1981.

MLA (9th ed.) Citation

Heyde, G. C. Modapts Plus. Heyde Dynamics, 1981.

Warning: These citations may not always be 100% accurate.