Παραπομπή APA

Kennett J Frey. (1967). Plant breeding: A symposium held at Iowa State University. Iowa: Iowa State Univ.

Παραπομπή Chicago Style

Kennett J Frey. Plant Breeding: A Symposium Held At Iowa State University. Iowa: Iowa State Univ, 1967.

Παραπομπή MLA

Kennett J Frey. Plant Breeding: A Symposium Held At Iowa State University. Iowa: Iowa State Univ, 1967.

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