Holbert, P. E. (1960). An Effective Method of Preparing Sections of Bacillus polymyxa Sporangia and Spores for Electron Microscopy. The Rockefeller University Press.

Holbert, Pauline E. An Effective Method of Preparing Sections of Bacillus Polymyxa Sporangia and Spores for Electron Microscopy. The Rockefeller University Press, 1960.

Holbert, Pauline E. An Effective Method of Preparing Sections of Bacillus Polymyxa Sporangia and Spores for Electron Microscopy. The Rockefeller University Press, 1960.