APA

Johnson H., . (1973). The international book of trees: a guide and tribute to the trees of our forests and gardens. [New York: Simon and Schuster.

Chicago

Johnson Hugh, . 1973. The international book of trees: a guide and tribute to the trees of our forests and gardens. [New York: Simon and Schuster.

Harvard

Johnson H., . (1973). The international book of trees: a guide and tribute to the trees of our forests and gardens. [New York: Simon and Schuster.

MLA

Johnson Hugh, . The international book of trees: a guide and tribute to the trees of our forests and gardens. [New York: Simon and Schuster. 1973.