Παραπομπή APA

Spray, R. S., & Johnson, E. J. (1946). The Preparation of Loeffler's Serum and Similar Coagulable Mediums.

Παραπομπή Chicago Style

Spray, Robb Spalding, και Elmer Jay Johnson. The Preparation of Loeffler's Serum and Similar Coagulable Mediums. 1946.

Παραπομπή MLA

Spray, Robb Spalding, και Elmer Jay Johnson. The Preparation of Loeffler's Serum and Similar Coagulable Mediums. 1946.

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