Add booklet source

src/bibliography/bib_types/booklet.rs

@@ -0,0 +1,24 @@
+use crate::bibliography::bib_types::LocalDate;
+
+/// A booklet source where only the title can be known
+#[derive(Clone, Debug)]
+pub struct Booklet {
+    pub title: String,
+    pub author: Option<String>,
+    pub how_published: Option<String>,
+    pub address: Option<String>,
+    pub date: Option<LocalDate>,
+}
+
+impl Booklet {
+    /// Creates a new booklet with only the mandatory values
+    pub fn new(title: String) -> Self {
+        Self {
+            title,
+            author: None,
+            how_published: None,
+            address: None,
+            date: None,
+        }
+    }
+}

src/bibliography/bib_types/mod.rs

@@ -1,9 +1,11 @@
 use crate::bibliography::bib_types::article::Article;
 use crate::bibliography::bib_types::book::Book;
 use chrono::{Date, Local};
+use crate::bibliography::bib_types::booklet::Booklet;
 
 pub mod article;
 pub mod book;
+pub mod booklet;
 
 pub type LocalDate = Date<Local>;
 
@@ -12,7 +14,7 @@ pub type LocalDate = Date<Local>;
 pub enum BibliographyType {
     Article(Article),
     Book(Book),
-    Booklet,
+    Booklet(Booklet),
     InBook,
     InCollection,
     Manual,