Citazione APA

Pyle, R. (1925). How to grow roses (16th ed., rev.). The Conard-Pyle company.

Stile di citazione Chicago

Pyle, Robert. How to Grow Roses. 16th ed., rev. West Grove, Penna.: The Conard-Pyle company, 1925.

Citazione MLA

Pyle, Robert. How to Grow Roses. 16th ed., rev. The Conard-Pyle company, 1925.