Gaya APA
Helgeson, J, P., Deverall, . (1983).
Use of tissue culture and protoplast in plant pathology (1).
London:
Academic P.
Gaya MLA
Helgeson, John, P., Deverall, .
"Use of tissue culture and protoplast in plant pathology".
1
London:
Academic P,
1983.
Text.