Παραπομπή APA

Kunkel, G. (1978). Flowering trees in subtopical gardens. Dr. W Junk B V publishers.

Παραπομπή Chicago Style

Kunkel, G. Flowering Trees in Subtopical Gardens. Hague: Dr. W Junk B V publishers, 1978.

Παραπομπή MLA

Kunkel, G. Flowering Trees in Subtopical Gardens. Dr. W Junk B V publishers, 1978.