Gaya APA
Siopa, N. (1987).
3rd International Working Group on Pseudomonas Syringae Pathovars Summaries of Papers .
Portugal:
Nuno Siopa.
Gaya MLA
Siopa, Nuno.
"3rd International Working Group on Pseudomonas Syringae Pathovars Summaries of Papers".
Portugal:
Nuno Siopa,
1987.
Text.