APA (7th ed.) Citation

Garrett, R. E. (1999). Urban Aggregates. Pit & Quarry, 92(1), 30.

Chicago Style (17th ed.) Citation

Garrett, Rodner E. "Urban Aggregates." Pit & Quarry 92, no. 1 (1999): 30.

MLA (9th ed.) Citation

Garrett, Rodner E. "Urban Aggregates." Pit & Quarry, vol. 92, no. 1, 1999, p. 30.