Citazione Stile APA (7a Edizione)

Baumgardt, J. P. (1968). How to prune almost everything. M. Barrows.

Citazione stile Chigago Style (17a edizione)

Baumgardt, John Philip. How to Prune Almost Everything. New York: M. Barrows, 1968.

Citatione MLA (9a ed.)

Baumgardt, John Philip. How to Prune Almost Everything. M. Barrows, 1968.