APA (7th ed.) Citation

Appleyard, R. (1930). Pioneers of electrical communication / by Rollo Appleyard. Macmillan.

Chicago Style (17th ed.) Citation

Appleyard, Rollo. Pioneers of Electrical Communication / by Rollo Appleyard. London: Macmillan, 1930.

MLA (9th ed.) Citation

Appleyard, Rollo. Pioneers of Electrical Communication / by Rollo Appleyard. Macmillan, 1930.

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