APA (7th ed.) Citation

Heath, M. S., & Horsell, D. W. (2017). Multi-frequency sound production and mixing in graphene. Nature Portfolio.

Chicago Style (17th ed.) Citation

Heath, M. S., and D. W. Horsell. Multi-frequency Sound Production and Mixing in Graphene. Nature Portfolio, 2017.

MLA (8th ed.) Citation

Heath, M. S., and D. W. Horsell. Multi-frequency Sound Production and Mixing in Graphene. Nature Portfolio, 2017.

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